LOI Template & Guide · Architecture Firm

Letter of Intent Template for Acquiring an Architecture Firm

A practical, deal-ready LOI framework built for the unique complexity of architecture practice acquisitions — covering purchase price structure, licensure continuity, backlog valuation, and seller transition terms.

A Letter of Intent (LOI) is the foundational document that moves an architecture firm acquisition from exploratory conversation to a structured, good-faith negotiation. For architecture practices in the $1M–$5M revenue range, the LOI must address issues that don't arise in typical product or e-commerce deals: Who holds the architectural license post-close? How is project backlog valued and protected? What happens if the founding principal's clients walk out the door? This guide breaks down each section of a well-drafted architecture firm LOI, provides realistic example language, and flags the negotiation dynamics buyers and sellers should anticipate. Whether you're a licensed architect acquiring a practice, a regional AEC firm expanding geographically, or a founding principal preparing to exit after 20 years, this template gives you a credible starting point that signals professionalism and deal sophistication to the other side.

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LOI Sections for Architecture Firm Acquisitions

Parties and Transaction Overview

Identifies the buyer entity, seller entity, and the specific assets or equity interests being acquired. For architecture firms, this section must clarify whether the transaction is structured as an asset purchase or stock purchase, as this directly affects how architectural licenses, contracts, and professional liability history transfer.

Example Language

This Letter of Intent is entered into between [Buyer Legal Entity], a [state] [LLC/corporation] ('Buyer'), and [Seller Legal Entity], a [state] professional corporation ('Seller'), and [Founding Principal Name], individually ('Principal'). Buyer proposes to acquire substantially all of the assets of Seller, including but not limited to the firm's client contracts, project backlog, design portfolio, trade name, software licenses, and equipment, excluding cash and accounts receivable accrued prior to closing. The parties acknowledge that this LOI is non-binding except as to the exclusivity, confidentiality, and expense provisions set forth herein.

💡 Sellers often prefer a stock purchase to preserve client contract continuity and avoid triggering assignment clauses in government or institutional contracts. Buyers typically prefer an asset purchase to avoid inheriting unknown E&O liability. In architecture firm deals, this tension is common — negotiate which legacy contracts require novation and which transfer automatically under state law before committing to a structure.

Purchase Price and Valuation Basis

States the proposed total consideration, the methodology used to arrive at it, and how the price is allocated between tangible and intangible assets. Architecture firms in the lower middle market typically trade at 2.5x–4.5x EBITDA, with the specific multiple driven by backlog strength, client diversification, and whether a licensed architect beyond the founder exists.

Example Language

Buyer proposes a total purchase price of $[X], representing approximately [3.0x–3.5x] trailing twelve-month EBITDA of $[Y], as adjusted for owner compensation normalization and non-recurring expenses. The purchase price reflects a base cash payment of $[X1] at closing, with the remaining $[X2] subject to the earnout provisions described in Section [4]. Buyer reserves the right to adjust the purchase price based on findings during the due diligence period, including any material change in project backlog, licensure status, or undisclosed professional liability claims.

💡 Sellers should push back on open-ended price adjustment language and negotiate a defined due diligence adjustment cap — typically no more than 10–15% of total consideration. Buyers should ensure that the EBITDA calculation adds back only legitimate one-time items and that the principal's compensation is normalized to market-rate replacement cost, not eliminated entirely, since a senior architect will need to be hired or retained post-close.

Earnout Structure and Metrics

Defines the contingent payment tied to post-close performance, which is nearly universal in architecture firm acquisitions due to key-man risk and client relationship uncertainty. Earnouts in architecture deals are typically tied to revenue retention from existing clients, backlog conversion, or EBITDA over a 12–24 month period following close.

Example Language

Buyer agrees to pay Seller an earnout of up to $[X] over a period of [24] months following the Closing Date, calculated as follows: (i) $[X1] if aggregate net revenue from clients active in the twelve months preceding Closing equals or exceeds [85%] of the trailing twelve-month baseline revenue of $[Y] during the first twelve months post-close; and (ii) $[X2] if such revenue equals or exceeds [80%] of the same baseline during months thirteen through twenty-four. Earnout payments shall be made quarterly within [30] days following the end of each calendar quarter. Buyer shall maintain separate project-level revenue tracking sufficient to calculate earnout obligations and shall provide Seller with quarterly earnout reports.

💡 Sellers should negotiate for earnout metrics tied to factors within their control — client introductions, transition support, and referrals — rather than metrics affected by Buyer's operational decisions post-close. Sellers should also negotiate anti-sandbagging provisions preventing Buyer from intentionally underserving earnout-period clients to reduce payments. Buyers should include a carve-out that excludes revenue decline caused by macroeconomic downturns, client bankruptcy, or government contract non-renewal from earnout calculations.

Licensure Continuity and Principal Obligations

Addresses one of the most critical and architecture-specific issues in any deal: ensuring a licensed architect is in place post-close to maintain the firm's Certificate of Authorization in each state of operation. This section also defines the selling principal's transition role and any consulting or employment obligations.

Example Language

As a condition precedent to Closing, Seller shall confirm that at least one licensed architect, other than Principal, is employed by or contracted with Buyer and is eligible to serve as the Responsible Architect of Record in [State(s)] where the firm currently holds a Certificate of Authorization. Principal agrees to enter into a [24]-month employment or consulting agreement with Buyer at an annual compensation of $[X], during which Principal shall remain available to support active project transitions, client relationship introductions, and state licensure continuity as reasonably requested by Buyer. In the event that Principal's architectural license is suspended or revoked prior to Closing, Buyer may terminate this LOI without penalty.

💡 This is often the most heavily negotiated section. Sellers nearing retirement resist long consulting obligations; buyers fear being left without licensed coverage. Compromise structures include a 12-month full-time employment period followed by a 12-month part-time consulting retainer. Both parties should confirm with their respective legal counsel which states require the Certificate of Authorization to be reissued versus amended upon a change of ownership.

Project Backlog and Working Capital

Defines how the existing signed project backlog is valued, how work-in-progress is handled at closing, and what working capital target is established for the business at the time of transfer. Architecture firms often have significant unbilled receivables and deferred revenue tied to project phases.

Example Language

The parties agree that Seller's project backlog as of [date] consists of signed contracts with an estimated remaining fee value of $[X], as detailed in Exhibit A attached hereto. Seller represents that at least [75%] of such backlog is expected to result in billable fees within twelve months of Closing. The parties shall establish a normalized working capital target of $[X] based on average monthly accounts receivable less accounts payable over the trailing six months. Any working capital surplus or deficit at Closing, as calculated pursuant to the agreed methodology, shall result in a corresponding dollar-for-dollar adjustment to the base purchase price, subject to a collar of $[X] above and below the target.

💡 Buyers should require project-level backlog detail including client name, project phase, contract value, and percentage complete. Sellers should push to exclude contingent or unsigned proposals from any backlog representations. Both parties should agree on how percentage-of-completion revenue recognition affects the working capital peg and whether unbilled receivables are included in or excluded from the target calculation.

Due Diligence Period and Access

Specifies the length of the due diligence period, what materials the seller must provide, and the process for buyer access to staff, clients, and project files. Architecture firm due diligence requires specialized review of licensure records, E&O insurance history, and project contract terms.

Example Language

Buyer shall have a period of [45–60] calendar days from the date of this LOI to complete its due diligence investigation ('Due Diligence Period'). Seller shall provide Buyer with access to: (i) three years of financial statements prepared or compiled by a CPA; (ii) all active project contracts, subconsultant agreements, and client correspondence; (iii) state licensure certificates and renewal records for all principals; (iv) professional liability (E&O) insurance certificates and claims history for the prior five years; (v) employment agreements, non-solicitation agreements, and 1099 contractor agreements for all staff; and (vi) project management software access for backlog and pipeline review. Buyer agrees to conduct all due diligence in a manner that minimizes disruption to Seller's operations and client relationships.

💡 Sellers should limit buyer access to clients and staff until late in the due diligence process to avoid premature disclosure. Buyers should insist on direct interviews with at least the top two or three project managers and review of each principal's licensure renewal history. For firms with government contracts, buyers should confirm early whether any contracts include change-of-control clauses requiring agency consent.

Exclusivity and No-Shop

Grants the buyer an exclusive negotiating period during which the seller agrees not to solicit or entertain competing offers. This is typically the only binding provision in an LOI alongside confidentiality and expense obligations.

Example Language

In consideration of Buyer's commitment to invest significant time and resources in due diligence, Seller and Principal agree that from the date of execution of this LOI through the earlier of (i) [60] calendar days or (ii) termination of this LOI by either party, Seller shall not, directly or indirectly, solicit, encourage, or engage in discussions with any third party regarding the potential sale, merger, recapitalization, or transfer of a controlling interest in the business ('Exclusivity Period'). Seller shall promptly notify Buyer if any unsolicited offer is received during the Exclusivity Period.

💡 Sellers should resist exclusivity periods longer than 45–60 days unless the buyer has demonstrated serious intent through a significant earnest money deposit or proof of financing. Buyers should negotiate the right to extend exclusivity by 15–30 days if due diligence uncovers issues requiring additional information, provided they notify the seller in writing before the original expiration date.

Confidentiality

Requires both parties to protect the confidentiality of deal terms, financial information, and client data exchanged during the transaction process. For architecture firms, this is especially important given the sensitivity of client project details, fee structures, and employee compensation.

Example Language

Each party agrees to maintain in strict confidence all non-public information disclosed by the other party in connection with this transaction, including financial statements, client lists, project contracts, employee compensation data, and the existence and terms of this LOI. Neither party shall disclose such information to any third party without the prior written consent of the disclosing party, except to advisors, lenders, or attorneys who are bound by equivalent confidentiality obligations. This confidentiality obligation shall survive the termination of this LOI for a period of [two] years.

💡 Sellers should ensure the LOI confidentiality provision covers disclosure to employees and clients, not just third-party competitors. If the buyer is a competing architecture firm, sellers should negotiate specific restrictions on how employee compensation and client fee data may be used if the deal falls through.

Conditions to Closing

Lists the key conditions that must be satisfied before the transaction can close, including financing, licensure confirmation, third-party consents, and satisfactory due diligence completion.

Example Language

The obligations of Buyer to consummate the proposed transaction are subject to the satisfaction of the following conditions prior to or at Closing: (i) completion of due diligence to Buyer's reasonable satisfaction; (ii) confirmation that at least one licensed architect other than Principal holds a valid license in each state of operation; (iii) receipt of SBA or other financing commitments acceptable to Buyer; (iv) execution of a definitive Asset Purchase Agreement and all ancillary documents; (v) receipt of any required third-party consents to the assignment of material client contracts; and (vi) no material adverse change in the firm's backlog, staff, or financial condition between the LOI date and Closing.

💡 Sellers should negotiate a definition of 'material adverse change' that excludes normal project completions, seasonal revenue variation, and industry-wide economic events. Buyers using SBA financing should alert the seller early that SBA approval adds 60–90 days to the timeline and may require the seller to carry a standby note representing 10% or more of the purchase price.

Expense and Break-Up Provisions

Addresses which party bears deal costs if the transaction does not close, and whether any break-up fee applies if a party terminates the LOI in bad faith.

Example Language

Each party shall bear its own legal, accounting, and advisory expenses incurred in connection with this transaction, regardless of whether the transaction is consummated. In the event that Seller terminates this LOI during the Exclusivity Period in order to pursue a transaction with a third party, Seller shall reimburse Buyer for documented out-of-pocket due diligence expenses up to a maximum of $[15,000]. No break-up fee shall be payable by Buyer if Buyer terminates this LOI following its good-faith completion of due diligence and a material issue is discovered.

💡 Break-up fees in lower middle market architecture deals are uncommon but can be appropriate when the seller has turned away competing buyers in reliance on the LOI. Sellers should resist expense reimbursement obligations tied to due diligence costs unless a meaningful earnest money deposit is not in place, as buyers can inflate claimed expenses.

Key Terms to Negotiate

Earnout Metric Selection

The single most contested LOI term in architecture firm deals. Buyers prefer EBITDA-based earnouts; sellers prefer gross revenue retention tied to named clients. Gross revenue from identified clients is more measurable and less subject to Buyer manipulation through cost allocation, making it the better metric for sellers in architecture transactions.

Licensure Continuity Obligation

Both parties must agree on who bears the cost and responsibility of ensuring a licensed architect is in place at closing and throughout the transition. If the seller is the sole licensed architect and no replacement has been identified, this issue can kill the deal. Negotiate early and confirm state-specific Certificate of Authorization requirements before signing the LOI.

Backlog Representation Threshold

Sellers often want to represent backlog broadly including proposals and verbal commitments; buyers want only signed contracts. The LOI should define backlog precisely — signed contracts only — and specify the percentage of that backlog expected to convert within 12 months. A 75–85% conversion threshold is typical and should be negotiated as a rep rather than a warranty.

Non-Compete and Non-Solicitation Scope

Buyers need enforceable non-compete agreements from the selling principal covering geography and duration appropriate to the firm's service area. For architecture firms, a 50-mile radius and 3-year term is typical. Sellers should push to carve out pro bono, academic, or personal design work not competitive with the firm's commercial client base.

Working Capital Peg and Adjustment Collar

Architecture firms often have lumpy receivables tied to project milestones, making a static working capital target unreliable. Negotiate a trailing six-month average as the peg and a meaningful collar — typically $50,000–$100,000 — below which no adjustment is made. This prevents minor timing differences in project billing from triggering a price reduction at closing.

E&O Insurance Tail Coverage

Professional liability tail coverage for pre-close work is a material cost — often $20,000–$50,000 annually — that must be assigned to either buyer or seller in the LOI. Sellers should negotiate for the buyer to assume tail coverage costs as part of the purchase price, while buyers typically prefer sellers to fund a tail policy covering at least three to five years of prior work.

Staff Retention Incentives

Key project managers and licensed associates are often as valuable as the client relationships they manage. Negotiate whether the buyer will fund a retention bonus pool for key staff and confirm during the LOI phase which employees are subject to existing non-solicitation agreements. Sellers should disclose any staff members who have informally expressed departure intent before due diligence begins.

Common LOI Mistakes

  • Failing to address licensure continuity in the LOI, leaving both parties exposed to a deal-killing discovery during due diligence that no licensed architect beyond the founder is available to assume responsibility post-close.
  • Defining backlog too broadly in representations, including unsigned proposals and verbal client commitments that inflate the apparent value of the pipeline and set up earnout disputes when those projects fail to materialize after closing.
  • Agreeing to an earnout structure with EBITDA-based metrics without negotiating buyer accounting controls, giving the acquirer the ability to allocate overhead costs in ways that suppress reported EBITDA and reduce earnout payments to the seller.
  • Skipping the working capital peg negotiation in the LOI, then discovering at closing that the seller drew down receivables or delayed billing in the final months pre-close, resulting in a significant and unexpected purchase price reduction.
  • Signing an LOI with a 90-day exclusivity period without requiring proof of financing commitment from the buyer, leaving the seller locked out of the market for three months while a buyer fails to secure SBA approval or equity capital.

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Frequently Asked Questions

Is an LOI legally binding for an architecture firm acquisition?

Most sections of an LOI are intentionally non-binding — including the purchase price, deal structure, and due diligence terms — which allows both parties to negotiate in good faith without committing prematurely. However, three provisions are typically written as binding: the exclusivity or no-shop clause, the confidentiality obligation, and the expense reimbursement provision. In architecture firm deals, the licensure continuity language and any earnest money deposit terms may also be drafted as binding commitments. Your M&A attorney should clearly delineate binding from non-binding sections with explicit language in the LOI itself.

How should an architecture firm's project backlog be reflected in the LOI?

The LOI should include a schedule of signed contracts representing the firm's backlog as of a specific date, along with a representation from the seller that a defined percentage — typically 75–85% — is expected to convert to billed revenue within 12 months. The LOI should also specify that any material reduction in backlog between the LOI date and closing will trigger a purchase price review. Buyers should not accept verbal commitments or unsigned proposals as backlog representations, as architecture clients routinely delay or cancel projects in the proposal stage.

What earnout structure works best for architecture firm acquisitions?

The most practical earnout structure for architecture firms ties payments to gross revenue retention from clients identified by name in an exhibit to the LOI. This approach is measurable, less subject to buyer accounting manipulation, and directly reflects the core risk in any architecture deal — whether existing clients follow the firm through a change of ownership. A two-tranche structure over 24 months, with the first payment at month 12 and the second at month 24, gives the seller near-term liquidity while protecting the buyer against early client attrition. Avoid EBITDA-based earnouts unless you have strong protections against buyer cost allocation decisions that could suppress reported earnings.

What happens to the architecture firm's state license when ownership changes?

This depends on the state and how the firm is structured. Most states issue a Certificate of Authorization to the firm entity — not the individual — but require that a licensed architect be named as the responsible principal. In an asset purchase, the buyer typically must apply for a new Certificate of Authorization in each operating state, naming a qualified licensed architect employed by the buyer entity. In a stock purchase, the existing Certificate may remain valid if the responsible principal stays in place. Both buyer and seller should confirm state-specific requirements with their legal counsel before executing the LOI, as some states impose significant lead times on new Certificate applications.

Should SBA financing affect how the LOI is structured?

Yes, significantly. SBA 7(a) loans are commonly used to finance architecture firm acquisitions and impose specific structural requirements. The SBA generally requires that the seller not retain more than 20% equity in the business post-close if a full buyout is intended, limits seller note terms and subordination, and requires a formal business valuation by a qualified appraiser. If the buyer plans to use SBA financing, the LOI should acknowledge this, include a financing contingency, and account for the longer timeline — typically 60–90 days from LOI to closing — that SBA approval requires. Sellers should also be aware that SBA loans often require the seller to carry a standby seller note of 10% or more of the purchase price for the first 24 months.

How long should the due diligence period be in an architecture firm LOI?

A 45–60 day due diligence period is standard for lower middle market architecture firm acquisitions. This timeframe should accommodate review of three years of financial statements, project-level backlog analysis, licensure verification in all operating states, E&O insurance claims history, staff agreement review, and at minimum two or three client reference calls conducted discreetly with the seller's consent. If the buyer is using SBA financing, the lender will also conduct its own underwriting review during this period, which is another reason not to compress due diligence below 45 days. Sellers should negotiate a hard end date with no automatic extension unless the buyer provides written notice of a specific unresolved issue before the deadline expires.

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