Do not pay final portion of say 'Floor Install' until it is complete. 

@David Edwards, the only "right" way to completely separate your properties from your personal fiances is to move them into a properly established and maintained LLC and refinance the properties in the name of the LLC. 

I think those of us who are in a hot market completely understand where you are coming from. 

Assuming California is fine with a realtor paying a non-realtor a Finder's Fee, that dollar amount is completely negotiable between you and the realtor.

Once you get it down to a more reasonable amount you can then look at saving the cash you need to invest and be in a more stable situation before it is completely paid off.

Couldn't hurt to get a cma from a local agent on expected value of the completed project. 

Even if you don't intend to sue, it may scare them into paying.You also have the option to represent yourself in small claims court, assuming you have writing from them stating the job was done in the common area.The email you have from the board president stating that it's under control and the plumber is aware and that they told the plumber to stop working shows them taking responsibility for the situation, and it no longer is your issue.

The work has already been completed and I paid the contractor a week ago.

@Christina Luton I have not completed a deal with partner yet, but have explored it with an associate. 

After the inspection gets completed I would reach out to the PM company and discuss how they screen tenants.