At this point, I have already provided the original lease to my financing company, void of the hidden addendum.  

Sellers may even have a re-inspection done after repairs, with the hopes that these steps show they've made the home ready for sale without hidden surprises.  

You will likely need to contact the owner since the PM only does as he is instructed.

You MUST pay attention to the instructions given by the auctioneer right before the auction begins.

If you want to uncover hidden gems on MLS, consider.. at least consider getting your real estate license - else you are at the mercy of your realtorGO NATS !

Suppose the seller is out of town or state and they a JV agreement, a piece of paper and the investor pays off the mortgage/DOT but they delay or appear not to intend to pay the seller their share of the profits from the JV agreement.Can the JV agreement be put into the escrow instructions for the sale of the property and if so how can the seller be assured of this after they've let go of the property after selling to the investor?

If you dropped the property manager and refinanced into a 30 year loan there might just be some hidden cash flow potential.

Drain lines really depends on the material and age - 50s and 60s copper drain pipes are getting real thin through electrolysis by now and develop hidden leaks. 

My biggest advice is a) get a professional to do it b) follow the instructions line by line c) make sure and let it dry and put multiple coats.

They should have a wide range of color choices and if not they can probably order it for you or instruct you to do it online.