You'll want to saturate that subfloor with some enzymatic cleaner and possibly some odor blocking paint thereafter if it smells really bad. 

I guess the road block is just finding the deals and some confidence/experience.

Looks like you're in great company, your dad may be able to help you avoid some of the typical stumbling blocks that new investors encounter. 

To invest well in Philly, you have to know block by block where the changes are and where the value is going.

I have a 3/2.5 block house with new roof 2024 On paper 2000 sq does not include 400 sq closed in Florida room with central air.

I know the credit report will have it but planned on asking for it to be blocked out.

The darkest block you see there on the east side is Whitehall.

The 48235 area, since I grew up in the area, familiar with each of the blocks.

In my case, at the end of their lease when I wanted to show the property to prospective long term tenants, the tenant gave me all kinds of grief about 'invading her privacy' and 'disrupting her life' even though I told her at the beginning of the lease that this was our procedure and I made every attempt to 1) give 48 hr lead times, when typically I would only give 24, and 2) blocked/scheduled showings for 1 day per week and 1 weekend day away from dinner time/church times, etc. maybe this was just the person I was dealing with though...- vet the tenant exactly as you would for a normal tenant.

Upload the lease into the tool, and insert initial and signature blocks in place.4.