My approach is somewhat unique since I'm a builder; I build my units from the ground up and then decide whether to use them for LTRs, STRs, or sell them outright.

If you have more than one LLC, each LLC should have its own set of accounts.Checking: Collect all income here, then use it to pay bills, pay the mortgage, or do maintenance.

Rates would be better with 25% down or by then you can use 15% down.

I recall a specific framework of business start up along the lines of starting with yourself, then adding an Admin, then an Ops, and then other support functions after that. 

The first a fix & flip so you can get the rehab done and then after 90 days ownership we can refinance based on the new value of the house into a DSCR loan. 

If you were to move more towards a luxury rental you could likely get $600/month extra but your entry price would then be around $425K.

I would provide the cash and backup reserves, I house hack one of the units, then she becomes the cosigner for me in order to be approved.

Roofs, flashing, gutters, downspouts, grading all are important things with shedding water off of and away from a house but people often don't think about these things until they have a problem that has caused damage and then its expensive!

Then let's ban the word free from our vocabulary. 

We were going to then take some of that money and take a chunk out of a higher interest rate credit card.