Why one buyer can become a long, low-priced process
Convenience at the beginning can become leverage for the buyer later.
A proprietary deal begins with one buyer and no competitive market check. It often feels efficient: fewer meetings, less disclosure, and a buyer that already knows the industry.
The buyer sees a different advantage. Without competition, the buyer can anchor value, request broad diligence, extend the timeline, and revise terms after the seller has invested time and disclosed sensitive information. The owner may also accept a longer transition, larger earnout, or more rollover equity because there is no comparable offer.
Some proprietary transactions produce good outcomes. The risk is not the identity of the buyer. It is the absence of evidence about what other qualified buyers would do.
If an owner prefers to negotiate with one buyer, create discipline around the process. Establish a valuation view before responding. Require a written indication of value and structure before extensive diligence. Set a defined schedule. Limit exclusivity. Resolve working capital, indemnification, financing, and post-closing role expectations before signing a letter of intent. Retain the right to stop if the buyer does not meet agreed milestones.
A targeted market check may also be appropriate. Contacting a small number of credible alternatives can preserve confidentiality while testing whether the proprietary buyer's proposal is competitive.
One buyer's interest is useful information. It is not a valuation. The seller should understand what is being traded away before exchanging market competition for apparent convenience.