I would stick with the simple renovation.  

Here is my simple really quick rehab interior estimate method.  

The lower the cash flow then there should be higher appreciation and therefore equity capture to refi into a new purchase. 

I would issue one more simple request to the servicer and properly identify yourself including a copy of the sheriff deed or CT, etc.  

This year I sold the home for $136k and want to make sure I capture the correct cost bases.

Being in the business of lending means following applicable lending laws, register as a lender, actually the process can be rather simple, but get legal first.

If a ground wire is available then the fix is simple.

If you are going to spend the time and money on mailing - it is best capture those leads the best you can, if you are not able to answer the phone regularly you may consider a recorded message to qualify leads and not just go to a voice mail box where 90% of people are going to hang up. 

Here are some simple ways to trade in wholesale real estate in Florida.

If your not finding your own deals your capture is going to be thin.