Debt to income will come into play if you use conventional financing.

I recently learned about the BRRRR method as an alternative to just getting traditional, conventional mortgages on rental properties, since I heard that there's a limit of something like 4-10 mortgages you can have taken out in your name at a time.

That FHA appraisal stuck with my house for an additional 6 months......so I had to try and find conventional buyers (which was hard for this price point / area).

There is also the chance of offering covered parking at additional cost to tenants, storage, charging utilities back to them if they are not currently, etc. 

So the buyer of such a sponsor package can now sell individual units to owners, hopefully make a profit buying at wholesale and selling at retail.Usually right after conversion, in the case of coops or condos, a certain number has to be sold before the HOA is formed, and in the meantime the sponsor is in charge.

Also I want to educate future homebuyers who are unable to qualify for a conventional loan about lease to own options.

You will need to go with non-conventional financing.These are known as commercial/portfolio lenders.They underwrite based on the property and deal itself.

I assume you have a conventional loan (MIP on a fha will be for the life of the loan).

You need to fit within Fannie and Freddie's standards in order to apply for conventional mortgages.

@Nathan Murray the answer to this question may depend highly on exactly what type of loan you are looking for as I use two different banks, 1 for commercial lending (5 year balloon, 20-25 year amortization) and more products for rehab versus another for conventional lending (30 year fixed).