My time in the military has enabled me to save and rack up some nice investments, which is what qualifies me for the amount I need in Miami.

Mathematically if you can make a greater return than that 3% then you should pay the minimum on the loans and invest the extra cash, which will enable you to keep the difference between the interest on your investments and the interest on the loans.

I recommend using this loan because it enables you to buy a multi-family that need some repair at a good price, rehab the property to your standard and rent it out. 

Like here in Oregon we can do 3 in a year and no more than 5 in your portfolio.. this was to enable those with IRA funds to lend  .. but they do not hold themselves out as lenders. 

Has anyone had experience with 'rent-to-own' or alternative payment structures (local programs, grants, specific lenders, etc) to enable this kind of transaction?

I have been thinking of using it as a strategy to take the additional cash flow and dumping it straight back into the property at a more rapid pace to improve the property enabling the ability to raise and stabilize rents quicker therefore increasing the properties NOI.

Find your number, and pursue opportunities that will enable you hit that number2.

Might enable me to raise rates and make more dollars in the future.Let's go bring in the hot takes!! 

They both do a "rehab" loan which enables us to get houses in poor shape financed.

Activity will likely be fed by new posts, new questions... if there is already sufficient coverage from the hyperactives among us to answer those questions, those who are less inclined to participate have an enabler not to need to answer the questions.