Law firm valuation: methods and ownership rules

Published October 25, 2026 · Rules checked against SBA and IRS sources as of October 2026

Normalizing lawyer pay

A law firm's profit as reported by its owners usually mixes two things: pay for their legal work and return on the firm as a business. A valuation separates them by charging every lawyer, owners included, at what it would cost to employ someone to do their work. If the selling partner bills $600,000 a year and takes home $450,000, and a lawyer doing that work would cost $200,000 in pay and benefits, the difference is profit the buyer is paying for, but only if those clients stay.

Receivables and work in progress

For many firms, the largest tangible assets are receivables (billed, not yet collected) and work in progress (worked, not yet billed). Both need testing: aging, historical realization rates (how much of standard billing is actually collected) and write-off history. A firm with $500,000 of WIP and a 70% realization rate has about $350,000 of expected cash, not $500,000. The purchase agreement should say who gets collections on pre-closing work, because that changes what the buyer is paying for.

Client transfer and ethics rules

Clients belong to themselves, not the firm, and they can follow the lawyer they trust. Rules modelled on ABA Model Rule 1.17 govern the sale of a law practice in most states, including notice to clients, and confidentiality duties limit what client information can be shared during diligence. Rules modelled on Model Rule 5.4 generally bar nonlawyers from owning a law firm or sharing its fees, so the buyer is normally a lawyer or law firm. These rules shape both value and structure, and they vary by state.

Revenue types, from most to least transferable

How the approaches apply

The income approach leads for most firms, built on cash flow after market compensation for every lawyer and adjusted for the revenue at risk when the seller leaves. The asset approach matters more than in many service businesses because receivables and work in progress can be large, but it rarely sets the value of a profitable firm. Market evidence from law practice sales is limited and terms vary widely, so valuers use it carefully. A valuation prepared for an SBA lender has to support the actual price being paid at closing, not a price that assumes later adjustments.

Client funds are not the firm's money

Lawyers hold client money in trust accounts. That money belongs to clients, not to the firm, and it isn't a firm asset to be bought, counted in working capital or pledged as collateral. Diligence should confirm that trust accounts reconcile and that no firm expenses have been paid from them. Unearned retainers held in trust are owed to clients until earned; if the buyer will do the work, the agreement should say how those balances and the matching obligations move with client consent.

Staff lawyers and paralegals

Associates and paralegals who know the files and the clients are often what makes a transition work. Valuers ask who does the work on each major client, how long they have been with the firm and whether they intend to stay. A firm where staff carry the relationships is worth more, for the same earnings, than one where everything runs through the seller.

Insurance and pre-closing work

Malpractice claims can surface years after the work was done. The seller typically buys extended reporting coverage, often called tail coverage, for their pre-closing work, and the buyer needs its own policy from day one. Lenders ask about claims history and coverage because an uninsured claim against the firm would hit the cash flow that repays the loan.

From valuation to loan

A law firm purchase is an ordinary SBA change of ownership: at least 10% equity, a valuation from a Qualified Source above a $350,000 Business Purchase Price, and 1.25x historical coverage. Seller earnouts are prohibited, which matters in law, where outside SBA lending part of the price is often tied to collections from transferred clients. An SBA deal needs a fixed price, with any performance rebate from seller to buyer applied to pay down the loan. The seller can consult for up to 24 months, which is the window for introducing clients and transitioning matters. See seller consulting after an SBA sale.

Contingency matters in progress

Firms that work on contingency carry a portfolio of cases whose value depends on outcomes, timing and costs advanced. A valuer looks at each significant matter: stage, expected outcome range, costs already advanced and expected to be advanced, and when a fee might be received. Fee-sharing between the selling lawyer and the buyer on pending matters is governed by the conduct rules where the firm practises and often requires client consent. Because outcomes are uncertain and lumpy, lenders tend to give contingency fees in progress little weight when sizing the loan, and look to the firm's recurring work for coverage.

A lender's sizing, continued

Illustration, not a real deal

In the estate planning example below, normalized cash flow is $220,000. At the 1.25x minimum, that supports annual debt service of $176,000, roughly $1.1 million of debt at an assumed 10% over 10 years. If the lender tests a scenario where 25% of collections follow the seller and most costs stay fixed in the first year, coverage falls below the minimum. That's why a lender may size the loan below the maximum the historical figure supports, and why the transition plan matters as much as the valuation.

What a lender looks for

• The buyer is eligible to own the firm under the state's rules.
• Origination and realization history by lawyer.
• A transition plan with client introductions, within SBA's 24-month consulting limit.
• WIP and receivables treatment spelled out in the purchase agreement.
• Malpractice insurance, including tail coverage for the seller's pre-closing work.

A worked view of transferable cash flow

Lenders usually respond to that risk with a longer seller transition, a lower price or more equity, and by testing coverage on a scenario where some seller-originated revenue is lost.

This is general information, not legal advice. See personal goodwill.

Get ethics counsel in the state where the firm practises before signing an LOI.

Lawyers buying a practice can also read our guide to accounting firm valuation, which faces similar client-transfer issues, and quality of earnings adjustments for how owner pay and one-off fees are normalized.

Common questions

Related guides

• Financing goodwill: how lenders underwrite intangible-heavy acquisitions
• Accounting firm valuation, and how SBA rules change the deal
• Quality of earnings adjustments: the categories, with examples
• SBA seller consulting agreements, partial changes of ownership and partner buyouts
• Fair market value of a business: what it means and how it differs

This guide explains rules and practice in plain English. It isn't legal, tax or credit advice, and SBA and IRS rules change. Check the current SOP, regulations and your lender's requirements before you rely on anything here. Examples with made-up businesses are illustrations, not real deals.