Your first few properties, especially as house hacks, should strictly be viewed as a means to an end.

My line of work (nuclear engineering), I view everything in incredibly strict, detail-oriented processes. 

I personally have not done this because my properties are in CA and we have strict rent control laws.

Now I won’t replace for each tenant but if the tenant takes care of the place like they should it won’t need to be remodeled at each turn over just a good cleaning and maybe some paint.I would rather keep the business relationship strictly business and donate and give back to charities and people in need.

Not knowing those areas well is a problem, asking around or checking individual county's website is often slow too.I found that out by checking local county's tax calculator + found properties in the same area that's sold for similar pricing back in 2019 and how much they are taxed in 2020.I had the opposite for Las Vegas, where the numbers were higher than the truth.When you google, "property taxes in xyz" they only mention what an average property tax is in a given area, often that percentage has nothing to do with booming markets and does not indicate anything near what you'd be paying.Anyway, just curious if there's any service where I can just put the zip code and get the real property tax amount/percentage that I would be paying if I purchase a house in that area?

Keep in mind there are some smaller banks or lender who have what is called "Overlays" or strict guide lines- So avoid them. 

Would this be strictly depending on a sale price that is well below market so that the sale price + renovation costs end up being below appraised value?

I was doing some research into the DC Housing Authority requirements and I came across an article in their code that stated the minimum occupancy for a 5-bedroom home is 10 people.

I'd be willing to bet they coded in an override or factory reset into the control panel anticipating codes would be forgotten or it becomes locked.

Stacking current building code on outdated building code (or something before eng codes existed!)