I suggest finding a good insurance agent and a good attorney/CPA to help you get everything organized.

If you can't find a good manager, walk away.

He wnent ahead and signed a contract with her; within 5 days she was able to find a buyer who paid $75k more than she did.  

. --- Once I'm ready to make the move, I can speak with a lawyer and a RE Tax Accountant to find out what's the lowest allowable to avoid that trigger.

Cash flow is definitely the biggest challenge; both in terms of finding properties to buy that cash flow with a loan on them and just company wide given interest rates and labor/material is up and, at least where I'm at in Jackson County, MO, taxes are way up too. 

I have a a great project in a prime location, but finding the right investor has been pretty difficult. 

It's the only that I can affordable How did you find this deal and how did you negotiate it?

Can you go back years before and find previous work history?

Finding a condo that allows Airbnb/STR will be challenging, they're rare and cost more because of it. 

Give him notice and if he doesn't follow the terms of the lease, tell him he has to find a new place to live.