Just don't sell then. What they gonna do, they are bound contractually. If they try something fishy like getting toxic, abusive, etc and still doesn't want to

Just don't sell then. What they gonna do, they are bound contractually. If they try something fishy like getting toxic, abusive, etc and still doesn't want to buy out, I'd just blow the server on them, which, along with the entire code base, had no working backups uNfOrTuNaTeLy, then spin up a company two months down the line under a shell company that is registered via lawyers and doesn't have your name on the public papers.