:)Happy Hunting!

If so does that mean I now have to modify the sales contract and get the buyer to sign it again?

In nearly all cases, buyers sign at closing a statement that they intend to occupy for at least a year.  

Great to know you have the cash and are a real buyer!!!

While condos have there own set of risk and buyer pools in Miami they are a better option than many other places.

If you let it go, will the seller have any trouble finding another buyer?

I️ assigned a property to an end-buyer, and he signed a contract to pay a $750 non refundable earnest money deposit.

As my business law professor said in regard to a buyer backing out, "we can't make you buy the house, but we can make you wish you did!"

There are also fees for if you win called buyers premium... just account for those when you  make the bid and don't get blind sided.On a side note, I purchased one last year that was on an auction site... 

There are good properties out here, but you really have to hunt for a deal and turnkey usually doesn't work too well out here, which is why you don't see a lot of turnkey companies out here compared to other regions.