Why Due Diligence is the Hardest Part
of Selling a Business
Every founder views their company as their own child, but to a potential buyer, that creation is full of structural flaws and risks. In this episode of Portus Perspectives, William Bissett explains why opening up the hood during due diligence is often the most painful and emotional part of the exit process.
Buyers are not looking for features; they are actively searching for vulnerabilities. One of the biggest red flags they look for is a business that is entirely dependent on its founder. When a buyer starts pointing out these flaws, it is incredibly easy to fall into the trap of founder resentment. However, losing your passion for the business during this critical phase can severely devalue your company at the closing table.
William discusses how to balance a deep pride in what you have built with the thick skin required to let a buyer tear it apart. By understanding the buyer’s perspective, founders can protect their life’s work and ensure a successful and profitable exit. Watch the full episode to learn how to prepare yourself mentally and structurally for the brutality of due diligence.
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Want to go deeper?
Portus Perspectives is part of a broader conversation. Join William and the Portus team each month for Charting Opportunities — in-depth discussions with founders, exit experts, and business specialists.
ORIGINAL MEDIA SOURCE(S):
William Bissett: Surviving Due Diligence When Selling Your Business | Portus Perspectives
Originally Recorded: January 30, 2026
Portus Perspectives: Episode 3