A family relative sold such and the buyer claimed they paid and the IRS went after the relative.
-> Long story about lawyers, dropped balls and jail time.
No one will do what you are proposing here. Get the money. Do not carry the sale. Plenty of stories out there so I share one.
I've read a share of articles about selling a business using seller financing. I'd like to read some of the stories of members of the community, regarding any transactions you've been a part of, that involved seller financing. Bad and good stories. Failures and successes. Any unexpected bumps, and how they were overcome. Thanks.