1. Never mix business with family or friendship. Ever.
2. Get a good lawyer and sign airtight contracts. Leave nothing to trust.
2. Get a good lawyer and sign airtight contracts. Leave nothing to trust.
2. Yes.
There are lots of reasons not to found with friends. Often, it's just that you're choosing someone you'd have fun working with over someone who's the right fit. Other times, your judgment is impaired by your affection for that person, and you can't determine whether they're a good fit or not.