1930's Single Family Renovation/Due Diligence

[Jerry LoCoco]

I'm looking at a single family home built in the 1930s that will require a significant rehab (HVAC, Plumbing, Electric, framing, drywall, new kitchen, new bathrooms etc). The listing is off the MLS and closing will occur at a title company, so I'm not too worried about title issues. I have hard estimates for HVAC, Plumbing, Electric, and Drywall/framing. Here is a list of my due diligence items. What am I missing ?

1) verify sewer connection in the alley (house needs entirely new plumbing sewer and water).

2) inspect foundation for structural integrity

3) check for mold/issues, termite damage etc.

4) Verify if there are additional historic district requirements/fees/inspections.

5) verify size/age of the electric panel.

6) verify whether gas lines need to be replaced.

7) Verify whether windows can be removed and replaced without historic district permits/inspections.