Knowledge is power. 

Unfortunately, you have no power over the tenant until you own the property.

For residential multifamily properties (1 - 4 units), can you use a home warranty to take care of the repair costs associated with rentals?

A lead magnet is a powerful way to capture their attention.Examples of Lead Magnets:“Free Guide: 5 Ways to Sell Your Home Fast Without a Realtor.”

And I don’t know if they’ve ever given up a power they took or a fee they’ve imposed. 

When Trying to qualify for a traditional loan, lenders usually price your purchasing power at 3x your net income.

Glad you're building your business while still active duty, that's a powerful move! 

To simplify the scenario I'm envisioning let me put it this way: what does a BRRRR look like when one of the parties contributing to the down payment and rehab costs ultimately ends up being the renter as well?

The violations would include 'the personal occupation of a garage as residence' while asserting to police that he didn't live in it, along with the power overloads due to use not in keeping with a garage rental.  

My current solution of using Baselane is by far the most cost effective and easiest, but it still requires that I spend time bookkeeping.