Guests broke a window (the locking mechanism not the glass).

Square footage, age, lot size to give a general idea, then you go in and narrow down by finishes, age of mechanicals, school zones and a few other things. 

I will be graduating in 2021 as a Mechanical Engineer.

We pay cash for cars and keep them for as long as mechanically feasible. 

Electrical, plumbing and other mechanical systems and equipment may be minimal or non-existent. 

The mechanism is that you do a 1031 exchange and take $250K of boot out. 

I'd sit down with the Contractor and find out what they expect, otherwise you may find a brick through the window at your open house or a mechanics lien when they check your Title for the Deed transfer.

The cost of litigation is always a threat and you want to avoid that and any contractor mechanic liens as delays and legal costs can build up fast.

Especially those mechanical items that can go out at the worst times.

Are you sure it's the A/C and not the pool, $1600 is a lot, i'm thinking there is something running on the pool that may not have to be, you should have the pool mechanical checked.