I think your PITI estimate in both cases is low.  

If you tell them their credit score is too low (or some other reason) and somehow you obtained information that is inaccurate, then there is the potential to cause a legal problem. 

If you intend on putting in 50 low ball offers a month, make sure your Realtor knows and is ok with that amount of legwork (because it's a lot).

If you purchase with 20k you will be paying PMI and the returns are too low. 

when I first started lending in Detroit in 2002.. the rehabbers there would paint the copper in the basements with grey paint in the low light theives would think its galvanized and not take it.

These two demographics are projected to be long term renters which will help keep vacancy rates low for years to come.In recent years, Pittsburgh has become a tech hub in its own right, attempting to create a dynamic job market similar to Silicon Valley.

Strong job growth, low unemployment rate, and strong population growth.

I would just be careful hopping back in now as interest rates and low inventory are making it very difficult if you aren't finding your own off-market options to buy.

I have a lengthy Legal Opinion, from my seasoned Legal Team regarding this matter.

The reality is that with the super low inventory we have sellers don't have a reason to give you a 50% discount, so your numbers get squeezed and you will end up leaving cash in the deal.