Debating Launching a Due Diligence business

Looking for advice on starting a small business. I’m trying to escape the corporate rat race…so I’m debating launching a Due Diligence business to help buyers evaluate the opportunity or sellers put together a pitch deck for buyers.

My background being in finance, I had a few friends reach out about buying a small business. I built a financial model, few page summary of the opportunity, and then helped them draft an offer that fits.

My question to small business owners, is this a service you think you would have used when purchasing? Or is this something you would use when selling your business?

I know this sounds like marketing, but it sincerely is not. I’m just interested if this is worth pursuing or not. Any advice is helpful!