It does seem like an area where agents and clients could get confused for example if a client has been working with a string of different agents and the time periods overlap a bit due to poor communication, let’s say they both sent the same properties... one of the agents may get upset and think they had procuring cause or just open a complaint out of spite. 

Thank you for your helpRobert VorhiesThese are called Secret Pets--it happens A LOT.Most cats are pretty good tenants, and unlike dogs will not cause your insurance company to freak out over certain bite prone breeds, nor will they try to devour the plumber when he comes to fix something possibly getting you named in a lawsuit as deep pockets rich guy landlord. 

Do you have anyway to vet the communications you are getting as actually coming from the person who has the assets you've checked out?

Here, it's a target rich environment. 

You will need those to communicate with the lender...i.e. getting a payoff authorization when you go to sell. 

Finding a investor friendly agent is a pain and communicating through an agent isn't exactly fun.

I painted the door & trim around the front windows a nice, rich red (because I couldn't find cheap shutters that were big enough!)

If you discover the repairs and removal are excessive you can communicate your concerns to the seller in the form of a new offer at a lower price OR request that they remove the tank prior to closing. 

Even then, if they "correct" it you legally can't evict. 3rd Here is a chance to be right or rich.

Based resources to study: Jay Abraham, Rich Scheffren, Dan Kennedy, Perry Marshsll, to name but a few.