I had to replace the AC unit itself the first summer after renting it.

I had to replace the AC unit itself the first summer after renting it.

I had to replace the AC unit itself the first summer after renting it.

I also offered to replace an older major kitchen appliance and fix any remaining minor issues.   

About how much to replace it with good quality shingles?

The "Wall Removal" component woould prompt the requirement for a full building permit compared to a "Pull and Replace" Easy Permit option...

If there are these appliances in the units get in the leases the language that tenants must repair or replace these specific appliances at their expense if they break down.

We grounded all the outlets and replaced the 30 year old exterior electrical panel.

The have a few locations in the SAT area. https://www.flooranddecor.com/ But make sure you buy enough to cover replacing damaged pieces over time if your executing a buy-and-hold exit strategy. 

Make sure you check the coverage for purchase coverage vs replacement coverage.