Or maybe I’m just too concrete, kind of thinker.

You can personally try to contact code enforcement and plead your case that your crooked property manager screwed you and that you are going to get compliant. 

Concrete Slabs from the 1960s and 1970s are approaching end of life on the copper plumbing.  

I thought this was part of the federal ADA which would mean that this would be true no matter the state but perhaps I'm wrong.What I'm learning is that it is always best to treat tenants, vendors, contractors, etc as calmly and even handedly, as possible.

Again I am not a lawyer but my view of the ADA rules is that they do not include ESA animals, cats (or any animal other than dogs and miniature horses) and that most posters have not looked into what ADA states.  

What are some of the negative impacts you are noticing and what are you doing to stay compliant?

The PM maintains a list of vendors who they vet and must ensure the vendors are compliant with their operating standards such as having a Certificate of Insurance naming the PM as an additional insured, receive invoices from said vendors, pay vendors, checks vendor work (in some cases) and ensure the invoice is appropriately accounted for in the asset/owners account.  

Scenario A: Leave family room as is (sitting on piers on top a mound of concrete, area underneath is unusable), finish existing basement and add a bathroom ($30-40K) - rent the basement out for maybe $1300. (300sf) Scenario B: Demo family room, rebuild a two-story 1000sf addition (200K?

I'm learning all these different buy and hold calculators and of course the numbers always feel like it's a little rough and not a concrete number. 

Rent is in section 8 housing and rent comes in on the 1st every month  Rent: 700$House has passed all government paperwork to be section 8 compliant. yearly insurance is 345$would need to use property management company to manage the property. utilities are paid for by the tenant.Does this add up?