If you mean he already represents the current owners and manages their property but would like to help you buy the same house, then, yes, he should be disclosing that agency relationship.  

Sellers who have gone to the trouble to find an agent, list the home, etc. are almost never willing to take enough of a price cut to make it a good wholesale deal.On the flip side, when selling my wholesale deals to a realtor representing a cash buyer, I always tell realtors to add their full commission on top of my wholesale asking price.

Hi Account ClosedI’m a representative with TransUnion SmartMove.

Does it matter that  I am representing myself in the sell (For Sale By Owner).  

I get probate basic data from an online source then I have to go the courthouse and use their computers to get the attorneys and personal representative info.

Possibly, the agent would disclose the reason it "failed" inspection in order to be clear and honest and avoid a repeat of this problem with a new seller, however, may disclose nothing in order to best represent seller's interests.  

Keep in mind they are not representing sellers, are not accountable, etc.

I recently used AppealTaxes-NOW.com to represent me in appealing the assessed valuation of two C class properties.

I would want the realtor who is an acquaintance to represent me.

Put each year's cash flow into adjacent cells and then use the formula =IRR(A1:E1) where the letters represent the first and last column and the numbers represent the row.