If you want to invest now, I believe what you're looking for is either: a first lien HELOC for a lot more than your current mortgage, or, a second lien HELOC on top of your mortgage.

@Ryan Weddle my father is a realtor down there and he's found all of them for me. 

My father is a real estate atty in the area, and he seems to think it is too big for someone like me to fix up.

For renewals we give the tenants a discount on the SECOND renewal. 

The second page is for investors to register and possibly receive those off-market listings.I originally posted a link to those pages, but Bigger Pockets auto-deleted it. 

Second, they said these tenants did pass all their usual checks, but another red flag for me is that my property manager only had called their current landlord as a rental reference - and that's it.

Secondly, once you have a mutual acceptance, I would request a copy of the current leases.

If the mortgage is secured by a second home or an investment property, the multiple financed properties policy applies.

Second risk is the transfer of remaining funds.

The Florida law defines a non-homestead property as a property not used as a primary residence, such as rental properties, second homes and commercial properties.