Who can manage my business sale from valuation through closing?

By Michael D. Rubin, CEO & Founder · September 2026 · 803 words

A sell-side M&A advisor is the professional who manages a business sale from valuation through closing: setting the value, preparing the company, finding and screening buyers, running competing offers, and coordinating due diligence and legal work until funds are wired. Your transaction attorney and CPA handle their parts, but the advisor keeps the whole process moving.

MDR & Associates is one such firm for Texas companies with $3 million to $100 million in revenue. Whoever you consider, check that they truly cover every stage below, not just the listing.

What end-to-end management actually includes

A sale has distinct stages, and the gaps between them are where deals stall. A full-service advisor covers all of these:

• Valuation: a recast of your financials and an opinion of value range before you commit
• Engagement: a written agreement setting out the fee, the scope and the expected timeline
• Preparation: a confidential marketing package and financial recast, and in our case an HD video
• Buyer outreach and screening: reaching qualified buyers and verifying their funding before sharing details
• Meetings: organizing buyer and seller meetings and site visits discreetly
• Offers: gathering multiple letters of intent and negotiating price and terms
• Due diligence: managing the buyer's requests and keeping the timeline on track
• Legal documents and closing: working with your attorney on the purchase agreement through to funds wired

Why one owner-side advisor for the whole sale helps

When the same people value the company and then sell it, the valuation is tested against real buyers, and the recast buyers see is one you already understand. The advisor who met each buyer knows which ones are serious when the letters of intent arrive. And during due diligence, when buyers dig into the numbers and push to renegotiate, the person defending the price is the one who built it. It saves time as well: every hand-off between separate firms costs weeks, and lost momentum is one of the things that ends deals.

It also matters whose side the advisor is on. A sell-side advisor represents the owner only. Be wary of any arrangement in which the same intermediary also represents the buyer or takes a fee from them.

The hardest part is the last third

Many owners assume the work is done when an offer is accepted. In practice, the months between a signed letter of intent and closing are where deals most often come apart: surprises in the financials, lender delays, arguments over working capital, or a buyer trying to lower the price after exclusivity is granted.

An advisor who stays involved through due diligence and the legal documents, not just the marketing, earns their fee in this stretch. They keep the document requests moving, head off disputes before they become deal-breakers, and keep backup buyers warm. Our article on what causes a sale to fall apart in due diligence explains the common causes and how they are prevented.

What stays with you, even with a full-service advisor

Some jobs cannot be handed off. You still run the company during the sale, and its results over those months matter to the price. You supply documents and answers when buyers ask, usually through the advisor. You decide which offers to accept, reject or counter. And you keep the sale quiet inside the business until the right moment.

A good advisor keeps those demands manageable: gathering most documents once, early, so due diligence does not become a second job; screening buyer questions so you answer the important ones; and scheduling meetings around your operations. The heaviest stretch for most owners is due diligence, which is exactly when the business most needs to keep performing.

What to confirm before you hire

Ask each firm you interview these questions, and ask for the answers in writing where it matters:

• Who, by name, will be in the negotiations, and will they stay with the deal through closing?
• Does the fee depend on the company actually selling?
• Can you arrange or coordinate buyer financing if a buyer needs it?
• How often will I get updates, and from whom?
• Can you show named companies you have taken all the way to closing?

How MDR & Associates runs the whole sale

Our ten-step process runs from a free discovery meeting and opinion of value to closing and funds wired. It typically takes three to nine months; the firm has closed in eight days and has taken eighteen months. A principal of the firm is in every negotiation, and a VP of Client Engagement is your main contact during marketing. We work alongside your attorney and CPA, and we can arrange SBA, conventional and seller-financed structures through our business financing work.

The fee is performance based: you owe it only if the company sells. Meet the team, or book a free valuation snapshot to begin with the first step.

Where this fitsBusiness valuation in Texas →