It seems like LimaOne’s fix2rent option kind of does it all but only has one closing so it may speed the process up when it comes time to refinance.

My cash won’t support to buy and fix the houses at the speed that I’m finding properties.

Typically your two options would be:Show a tax return for the current year with substantially higher income (i.e. claim more of your cash income on your taxes and wait until 2020 filing are been completed to purchase.Have someone co-sign on the loan.Co-signing is usually the simplest and fastest route, but if that doesn't work for you then you might speak with the lender about the first idea.Good luck with the upcoming purchase!

Rent: $2,200, includes: gas, water, sewer, trash, common wireless high-speed internet, parking and building landscape maintenance.”

Do you have them on speed dial ? 

That may speed them up to put in an application, and once you do receive an application you can let the other possibles that you've showed it to know that someone has put in an application, and if they want a chance to be considered they need to put in an application ASAP.

Having balloons in residential is very lousy idea, especially in high rate market, there're lot of CRE deals going to lose money this year because of balloon payment. if you pay only 5% down to a house in residential that only appreciate 3% while your mortgage is 7% and has baloon, that's the fastest recipe of you going default.

I would second hiring a PI 🕵🏿‍♂️  That is definitely the cheapest, fastest route if it works!

If I'm not getting paid on this house, I'd have to be taking on other projects and speed and quality of the flip would suffer.It looks like this...Acquisition: $100,000Rehab (including my salary, say $6000): $50,000Sale: $225,000Investor gets $150,000 back (all out of pocket expenses).

Once you buy the first one (The first one is always the hardest), the speed will pick up.