I wouldn't bet my life on 50%, but I would bet they are more problematic than the typical long-term renter.

It's just an unfortunate side of house flipping when you're first starting out - you typically don't have your downside covered.  

Business loans typically won't let you purchase a property if you read the fine print.

If you don't mind me asking, which loans do you typically use for house hacking? 

. - Just be prepared, because a motivated seller typically has a property with issues you need to be sure you can solve.

Typically they will have referrals to local accountants you can interview. 

Then laws changed and SSN's became our IDs and we could no longer typically ask for them in my area as a landlord.

We saw huge appreciation in the 2018-2022 inflation run up, but that has significantly slowed these days in my opinion.From a rental perspective your monthly income per unit after all expenses with a typical 20% down payment is likely $100-300 when you find a property that will cash flow.

Small businesses are typically valued at a multiple of SDE.

Yes, when there are multiple adult occupants, you would typically combine their gross incomes to determine if they meet the income criteria.