The note can be structured as interest only with a final balloon payment, for example. 

Its the same formula I've been using for 7+ years - Targeted letters. 

If they are, write them a letter stating that you would like to buy their house.

Luckily one of my other neighbors has had to deal with this particular owner so I now have the address and I am going to send him a letter explaining everything.

Cheryl Naegel speak with a lawyer in your jurisdiction but if you have a adjustment against the tenant and know their bank info, take it to their bank or have your lawyer send a letter to their bank and the bank will freeze their account immediately .

What letters have you had the most success with for bigger properties like Self-Storage and Multi-Family?

You'll also want to make sure an 8-year balloon is allowed under D-F, given your circumstances.Lastly, I'll just point out that mixing business and family rarely works out.

@Alexander Cadavid go to bcpa.net for Broward county and send a letter to the owner, saying that you are interested in the property.

You want to make contact either via, yellow letter or hand written letter, and/or phone to see if he/she/they are interested in selling the property.

I did sent a certified letter!