Well, I have received numerous fake applications from people who are generally out of the country, have poor English and spelling skills and promise ridiculously low repayment rates with basically no verification of anything. 

My plan is to increase rent by $125 ($625 to $750) on both sides of the duplex as there is an identical duplex behind the property that has active tenants paying $750.

@Irina BelkoferMy example is a regular tenant, who is paying late and another identical rental available for $895.

If they are VERY professional, they will have their processes in writing as verification that it is enforced equally and fairly by their entire staff. 6.

Less than a couple months later, we have seen identical properties in the neighborhood selling for $100-105K.

The rents were $500 in each of the identical 1/1 units when I purchased the quad. 

If they are VERY professional, they will have their processes in writing as verification that it is enforced equally and fairly by their entire staff. 6.

I was interested by it and that led to me scouting out properties/short sales for my family and convincing them to buy.That identification of opportunity secured my parents retirement, and then some, as we (due to dumb luck) bought multiple properties in the HQ2 Crystal City area between in 2010-2017.Fast forward to my RE investment growth, the property I closed on yesterday was at 80% of appraisal, and a model match was just listed on the market for 130% of our final sale price (identical condition as ours).

@Gary SowellThere are a number of institutional lenders/brokers out there that can handle the two new properties with no income verification if your debt ratio is the reason they are balking at the new purchases, but before you do that, you should look for a different mortgage lender and try conventional financing. 

This is actually great, however...2 - Flipping gets you $53k in hand..right now.3 - Looking at #1 and #2 together, it will take you over 7 years to accumulate $53k...if you have no problems holding over those 7+ years.4 - Doing as I suggested, gets you this very same deal...plus another identical one.