An engineer said the basement is out of code.

The Book on Advanced Tax Strategies: Cracking the Code for Savvy Real Estate InvestorsLoopholes of Real Estate (Rich Dad's Advisors (Paperback))

I focus on B-class zip codes and then vet every property. 

A normal FHA purchase means the property has to meet all health and safety code violations.

I disagree with the town in that most agents and brokerages would want to disclose this as it can materially alter what you can do with the property.

So she has now sent me a demand letter for $3000.00 for alleged violation of the Eviction moratorium and numerous other codes. 

Large expense that will come due real quick. 2) Roof 3) Foundation/slab But not a deal breaker, just be aware....most foundation issues are not a big deal. 4) Structural - alterations to load bearing walls, cut trusses in attic, etc 5) Electrical -  Is main panel adequate?

While I don't know everything, I can rewire a house up to code, install a kitchen, windows, know how to get wholesale material prices, etc...

I would not pursue getting details on the physical alteration; you don't need it and you don't want to put yourself in a position that your failure to act on a verified incident could get you sued by those lovely neighbors in the future. 

The problem in my market is as soon as you filter for tax liens or code violations the list drops to literally less then 40 properties.