If you are serious, you must use serious resources. Websites like Zillow and Trulia are chronicly polluted with faulty and deceptional data. Unless you are highly skilled, you will find it very difficlut to idenfty the respponsible inidviudal for a listing or a rental. Most of your inquires were sold as leads to someone who has no interenst in rentals.
Call a real estate professional in Tampa. That professional will direct you to the 'rental' specialist in their office. Then, restrict your activity to what is found in the MLS....not zillow, not trulia.
There is so little compensation that a agent WILL NOT chase the vapors found on Trulia. If you are serious. restrict your activity to data found on the MLS. Aggregate websites like Zillow and Trulia are suitable for entertainment purposes only.
I would suggest renting in an apartment complex until you're ready to own. Otherwise you must do a background check to verify the owner is not in foreclosure before renting from that owner. Also you must verify every month that the owner is not in foreclosure so you can be prepared to move when the Sheriff eventually shows up.
Read Trulia's words of caution regarding such scammers.