Full of piss and vinegar, ready to take on the world and become your own boss. 

You can clean the hardware with vinegar and water and reuse or get new.

(Also I think they have never pour vinegar into the drain pipe to clean it at all, so the pipe was clogged as well.

Gotta have the big bag of kettle-cooked salt-and-vinegar flavored Cape Cod potato chips every week.

If they fail, remove them and use the deposit to clean it up.If it's on concrete, you can usually eliminate it with a vinegar solution and a lot of scrubbing.

Tenant may be able to keep drains clean and clear with regular maintenance by pouring down the drain a quarter cup of baking soda followed by a half cup of vinegar.

I have ripped out all of the laminate, as that was the worst treated it is enzymes, vinegar and water scrub, then sealed with BIN primer.

Also the HVAC drain line was blocked (The HVAC tech said the drain line was clogged because the tenant didn't regularly pour vinegar solution down), water couldn't drain and leaked out of the AC unit.Can i use the pet deposit on the above?

If she found them out of the kitchen drain you would try bleach or vinegar.   

I have always scrapped it using a vinegar water mixture in a sprayer.