You search by county.  

I once started to sue a local MLS but they changed their position as long as I was clear in the listing that I wasn't the owner of record but had an interest in the property I was selling and they didn't want to open a can of worms.To make it easier I just started getting a specific power of attorney from the owner on title along with a clause in the PA that allowed me rights of access, etc. and the MLS had no problem because it was really no different then say putting a probate property on the MLS

Owner put out a "feeler" on a local Facebook group and immediately got bombarded by inquiries. 

I searched for top real estate agent companies in the area and was referred to the Tampa Home Group, to purchase both properties in the same community.

The basic steps would be: 1) Buy Land- (up front cost) make sure you can build what you want ahead of time by talking with an experienced engineer/architect familiar with local codes and regulations.

Talk to a mortgage expert and look up local property managers.

As a fellow investor, I can offer friendly advice and share my firsthand insights to help you navigate the South Florida market effectively.Good luck on your search!

Some advertise very aggressively on Google, so you can just do a search. 

If this was us, I would hope that we would have thought to get some gift cards for some local restuarants and dropped them at the hotel for them. 

You can see  BP members that are in your area: https://www.biggerpockets.com/search/usersGood luck !