What Does an M&A Attorney Cost for a Small Business or Practice Sale?

Reviewed by Erik Newton, Esq., on October 18, 2026.

“What will the lawyer cost?” is one of the first questions owners ask when they decide to sell or buy a business or a professional practice. There is no single price, because the legal work depends on how the deal is built, what has to be checked, and how many documents the parties end up negotiating. This article explains what drives the cost of an M&A attorney in Florida for a small business or practice sale, how fees are usually structured, and what to ask for when you request a quote.

What drives the cost of the legal work

Deal structure. An asset sale and a stock (or membership-interest) sale need different documents. In an asset sale the parties list the assets, contracts and licenses that move to the buyer and decide which liabilities stay behind. In a stock sale the buyer takes the whole company, so the purchase agreement carries more representations, warranties and indemnities. A deal that combines both, or adds real estate, takes more drafting.

Due diligence scope. Buyers review contracts, leases, employees, licenses, litigation, tax filings and, for a healthcare practice, billing and regulatory compliance. A narrow review of a small business with a handful of contracts is a different job from a practice with payer contracts, associates and several locations.

Regulated industries. Dental, medical, veterinary, optometry and medical spa deals carry rules ordinary businesses do not: who may own certain practices, how patient records transfer, licensing and permits that do not move with the sale, and health care clinic licensing questions. Those issues add review and drafting.

The number of documents. Beyond the letter of intent and the purchase agreement, a deal can include a lease assignment or new lease, employment or independent contractor agreements for the seller, a transition services agreement, a restrictive covenant, a promissory note if the seller finances part of the price, and lender documents if a bank or SBA loan is involved.

Negotiation rounds. Each round of comments on the purchase agreement adds time. A deal where the other side has experienced counsel and clear priorities usually moves in fewer rounds than one where terms keep changing.

Flat fee or hourly

M&A attorneys bill transactions either by the hour or for a flat fee agreed at the start. Hourly billing tracks the actual time, so the total is hard to predict until the deal closes. A flat fee sets the price for a defined scope, which lets owners plan the cost of the sale alongside broker, CPA and lender fees.

At Newton’s Law PA, flat-fee engagements are available for most transactions; fees are quoted per matter after a scoping call.

What a quote usually covers

A useful quote names the work it includes, so both sides know when the scope has changed. A typical transaction scope covers:

  • reviewing or drafting the letter of intent;
  • legal due diligence (for a buyer) or preparing disclosures (for a seller);
  • drafting and negotiating the purchase agreement and its schedules;
  • the ancillary agreements the deal needs, such as the lease assignment, employment or transition terms and the restrictive covenant;
  • coordinating with the broker, CPA and lender; and
  • closing and the post-closing filings and notices.

Some work is usually outside a transaction fee and billed by others: business valuation (a valuation firm or CPA), tax structuring advice and returns (the client’s CPA), lender fees, and broker commissions.

When the cost of a deal goes up

Legal costs rise when the deal changes after the scope was set: a switch from an asset sale to a stock sale, a new location or entity added late, a problem found in diligence that needs a fix before closing (an unassignable lease, a missing license, an unpaid tax), seller financing or an earn-out added mid-negotiation, or a lender with its own document requirements. Disputes between co-owners about the sale also add time. Raising these points early, ideally before the letter of intent is signed, keeps the scope stable.

How to get an accurate quote

Owners get the most precise quote when they can describe the deal in a short call. It helps to have:

  • whether you are buying or selling, and the type of business or practice;
  • the expected price range and whether any part is financed or paid over time;
  • whether it is an asset or stock sale, if that is decided;
  • the number of locations, employees and key contracts (leases, payer or supplier agreements);
  • a signed or draft letter of intent, if one exists; and
  • who else is involved: broker, CPA, lender.

Newton’s Law PA works with owners and buyers of healthcare practices and small to mid-market businesses in Florida and Illinois, in English and Spanish. You can book a 20-minute consultation to describe your deal and receive a quote.

Frequently asked questions

Is the attorney’s fee a percentage of the sale price?
Transaction attorneys usually bill a flat fee or by the hour rather than a percentage of the price. Broker commissions are the fees typically tied to the price.

Do the buyer and the seller each need their own lawyer?
Yes. Their interests differ on price, representations, indemnities and covenants, and one lawyer generally cannot represent both sides of the negotiation.

Is a healthcare practice sale more involved than a regular business sale?
Usually. Ownership rules, patient records, licensing and, in some cases, clinic licensing add steps that an ordinary business sale does not have.

When should I bring in an attorney?
Before the letter of intent is signed. Price, structure and the main terms are set there, and changing them later takes more time.

Does a flat fee cover changes to the deal?
A flat fee covers the scope agreed at the start. If the deal changes, for example a new entity or seller financing added later, the scope and the fee are revisited before the extra work is done.

Related reading

Practice area: Mergers and Acquisitions Attorney

This article is for informational purposes only and is not legal advice. No attorney-client relationship is formed by reading it.

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