You probably should get a professional to evaluate Proper support will require attic joists be a minimum 2 X 8, possibly 2 X 10.

It's why business between HMLs are with LLCs because they aren't licensed to do conventional mortgages to individuals. 

(I don’t usually work with buyers due to timing, but my wife is working on her license, so, in the future, I can help with that too).

-Florida Requires Property Management Companies to be licensed by the State??

As a wholesaler, I am a self-represented investor, and as long as I disclose in my cover letter to the seller that I am a licensed agent, self-representing, that I have a financial interest in the transaction, and that I am not representing anyone else in the transaction, I can do wholesale contracts.  

Now If your home is in the proper district, and everything is up to code, can the city deny me a permit because they want to?

Once completed you take the licensing test, which was also a simple process to sign up and take.  

I got my RE license in Louisiana to make it easier to find investment properties. 

Although we don’t anticipate any issues, we had a proper agreement of sale, mortgage and note, and we are closing with a title company (so there was a title search and we have title insurance) and will be using a loan servicing company to avoid any confusion about payments, balances due and taxes.

Quick rundown on me, my wife is a licensed agent and me and my business partner plan on buying our first deal as soon as we find one.