The last red flag is the 10X ROI which is unheard of.

If the Moratoriums are not lifted for many months there will be a Hughe number of properties waiting to be auctioned, the golfball passing through the garden hose.And when the properties are auctioned at an unheard of number the absorption rate may be slow and many properties will go unsold and be rotated back into the next auction.

but that DTI calculation where after a certain amount of properties your dti will go towards 50%. even if you bring in TWICE the amount of mortgage in rental income(unheard of I know but for my argument lets say you can) , that number will go towards 50% ((mortgage) debt/income(2x mortgage rental income). 1/2 = 50%. 

Fees that are customary in one area are completely unheard of in others.  

Unheard of, I know, but it did happen.

Although 3.5% down for a fourplex is unheard of these days.

That said, if the HVAC and water heater are both direct vent, and there was an old chimney present, it is not unheard of to run both the vent and exhaust lines up the old chimney - provided nothing else is using it. 

Evictions are unheard of, most use cash for keys.

i can still understand the fees, but what about the rate increase from 8.9 to 11.2% ya that's not normal buddy. in the past, i have used wells fargo, rbfcu, uwm, resi central, lendinghome and many more. this much rate increase is unheard of. 

the criteria mentioned above is not unheard of if you buying a 100 plus unit complex well below market value and depending on the business plan/exit strategy.