An older building with new mechanical systems may be more attractive to me than a late 80s - early 90s building with patched together stuff, although later construction generally has larger units. 

I’m Nick from Purvis, Mississippi and I’m looking forward to learning as much as I can about real estate investing.I’m a full-time mechanical engineer and a Captain in the Mississippi Army National Guard.

I want to use it as mechanism for information and to help others grow but not actually selling anything. 

That number also include new mechanicals. 

Not sure about the mechanics of how this works when buying rental property.

I am also a mechanic and i learned years ago that is a but for every seat, because I've seen a lot vehicles and say who would drive that thing and someone always does.

The contractor could put in a mechanic's lien. 

Key stipulations to keep in mind would be disclosures (lead based paint, structural/mechanical/public safety, insurance claims history) and which items do and do not transfer with sale.

I got a higher end freeze-proof faucet that has an internal drain mechanism to relieve pressure if a hose is left connected, but I would bet he isnt going to leave a hose connected in the winter again. 

It's not absolute just one mechanism among many with due diligence and a purchase and sale contract to try and keep the seller honest.