Every block is different .

Property is Located in North Miami almost NMB just two blocks from the city line. 

I've seen nice houses over there but across the street or down the block houses looks like they are straight out of the Adams Family. 

Filed Writ of Possession and Sheriff posted the letter to the door.

That is why they have been unresponsive.In order to get the ball rolling here, assuming there is a Will leaving everything to the son who is trying to sell the property, the son must hire an Attorney to file the estate for probate, and obtain Letters Testamentary naming the son (if he is so named in the Will) as the representative of the estate.  

A letter to the sellers' heirs if is there is a will letting the heirs know that property of the deceased has been sold on lease option.5. 

It's block by block over there, some are okay, particularly right by the police station or as you move toward the north, but some blocks are pretty shady, I wouldn't go south of 106th.

Locate the owner's mailing address and send him/her a handwritten letter or postcard.

I have the $ but that forclosure is one of my many road blocks.

Bill,With a REO (as with almost all listed properties) you'll have to show proof of funds if it's an all cash offer, or a pre-approval letter from a lender if you intend to use financing.