its kind of a trade off because i can get a newer property at a higher price and down payment, or get something older, less down and then use that money to fix what i need to fix. 

I would start by talking to a lender who deals with construction loans.

Be sure to run numbers with both a local lender and a national one to compare terms-sometimes smaller local firms can surprise you.HOAs: Brickell condos often have HOA fees, which can eat into your cash flow.

By way of example, a lender may charge retainage, only release soft costs upon C/O, may limit loans to a set number of draws or only allow draws once a certain dollar amount of work has been completed.

Most of the time, unless you bought many years ago or got some other crazy deal, primary homes don't make good rentals because you paid too much for them to ever really make any money.

I haven't done a 1031 exchange, but may in the near future and the small amount of research I have done on it seems to indicate that some qualified intermediaries only do the intermediary task (hold your money while you close on the new deal) and some try to do other tasks as well, like facilitate you finding the next deal, etc. 

Very cool to see lenders out there with an understanding of medium-term rentals!

Yes, most large traditional lenders only focus on 1-4 units and other properties that fit into a box. 

Also you would not reduce the price because of the interest payment. that is not how it works.3. yes the note could be sold, but at what type of discount and what if the borrower stopped paying.while there are a lot of posts on seller financing, some estimiate less than 1% of all transaction have seller financing and the ones that do are first position only with an average of 30% down payment - most of these are to people who do not have verifiable income.Thinking you will get conventional financing then seller financing will be uphill battle as the conventional lender most likely will not approve a 2nd mortgage for purchase.not trying to dissuade you, just wanted to provide some key insights so you do not spend 1000 hours chasing something that is impossible to find.

You can go after them in court, but you may not see that money.