There is this one and another one in Deby NY ( this one has 54 acres and i am looking at either selling it with the old house on it or putting storage units on it) With regards to FL, a loan to build the 36 units is one option or i am working now at entitling the lot then selling , so I am open to either.

Home storage has gotten a good bit of negative press and opinion lately, and, of course, the IRC section 4975 text about "providing services" for your IRA assets is something about which you may want to consult with your legal team. 

Obviously, I'm not an attorney and I haven't verified this with one, but I've heard in my state you can charge a storage fee (equal to a month's rent) for holding their property, charge them whatever amount your lease says for releasing fee, and then add on whatever damages the deposit won't cover.

Converting the back to RV/boat storage and renting the front out.

I'm looking do do flips, lease options, and multi-family, as well as self storage...

It’s a four plex and the garage is being rented out as storage to non-live-in tenants.

We have slowly acquired a small self storage facility, an 8 unit apartment, completed a large rehab project, and turned our previous personal house into a rental after moving into the rehab project. 

@Michael Palma  Mobile home parks are second ONLY to storage facilities with ease of financing.   

Is there opportunity for additional bedrooms, adding storage, things like that?

Several options ..Could you build a storage unit on the lot or could you sell the lot to someone who would like to build a house on it .