Account Closed I would step back and check that the total numbers work

You are already losing money on it so you should either cut your losses and sell or be comfortable losing money on a monthly basis with the expectation to make it up on the sale down the road (see you're in FL so you might need to wait a few years).

For the ADU, I'd check with your Realtor and see what the value you would be with doing the work you mentioned (and see what he/she thinks about any other work that needs to be done in the house prior to selling to maximize your sales price).

I am looking at an opportunity in my local area where there is a multiple unit mobile home park for sale.

Accurate valuation is crucial for both buyers and sellers to achieve optimal results.To make informed decisions, we must closely analyze market trends.

Are you living close to free?

Also note that at first I was nervous about vacancies b/c I marketed it and then it sat for a bit but it seems travel nurses book very close to the the time they actually will be in the area, about 2 weeks out from move in date.

I've noticed there are many homes for sale from large construction companies in North Fortworth, but not as many in the  areas like Euless, Hurst, and Bedford.

This can be a problem if you wait to get your new property under contract after the closing of your sale.   

Also transferring existing property to an LLC might trigged due on sale clause with your mortgage. 2 - Similar answer to #1.