But there are things you need to consider, like: everyone has to follow house rules to avoid drama, excessive use of kitchen and bathrooms leading to plumbing issues, being on call 24/7 with any problems, etc.

With fresh paint throughout inside and out, brand-new roof, dual HVAC systems, updated water heater, stainless steel appliances, lighting fixtures, outlets, countertops, and PEX plumbing just to name a few.

I have awesome subs(foundation, framing, plumbing) I work with for the heavy lifting.

I told them I would consider it as I'm hesitant about having this "contractor" do any plumbing on my property.

You mentioned a career change, I think going into the trades like plumbing and electrical are great and you can make good money doing those, but I think you may be taking on too much by trying to do that right now.

The paint is chipped so I'm assuming there's lead paint and there will likely be asbestos and lead pipes for plumbing.

Look for homes with updated systems—new plumbing, HVAC, roofing, and windows are essential for long-term value and tenant satisfaction.

I got it into contract and then had a huge plumbing failure during the home inspection.

I am getting a lumpsum estimate for things like electrical, plumbing, but I am not sure what the cost is for. 

With foundation issues, one could have plumbing, drywall, flooring and even roof issues and alot more.