So my escrow account could technically be negative for some of the year if, for example, taxes are collected halfway through the year but everything would be settled by the end of the year. 

Plus, regulations change and businesses move and staffing needs ebb and flow, I want to remain profitable in the worst case scenario. 

Edit: you would give them a notice to vacate, not technically an eviction.

Thank you  Technically no since there's no loan to refi,  but after 6 months you can get an equity loan. 

Second question is the home in in a poa “he pays no dues and it’s not active was just placed when the house was built in 1990, which means technical short term rentals aren’t allowed.

Technically you want to have some benefits while you are living there as well.

Banks were renting spaces to get business back in the 20s, hence commercial, and they rented to clothing, shaving, and shine boutiques and whoever else wanted to pay for a space.Some banks will treat anything over a single-family home as a type of commercial property as you are technically renting space as commercially defined. 

That's why you don't invest on a short-term horizon though.The right move isn't necessarily to cash-out refi and grow, technically.

Maybe there's some shack somewhere that is technically habitable that would?

On the last one, I do think there are technical deficiencies on the forum search overall, but as a poster, you should target the best topical forum for it and leave it at that.