@Gaylin W. it seems like you're going on tidbits of info and google- I would honestly go to a tax professional this year. 

This protects the company by giving them the ability to check with witnesses, gather info, etc. to defend the suit if it comes.

If that were the case, every Jehovah's Witness or vacuum cleaner salesperson would be arrested.

Do I need to take a witness or something?

You, or your agent, should then review the estoppels with the respective tenants; record any missing information or variation to the information presented {this is how you find side deals or catch un-ethical vendors}; and have the tenants attest the estoppel (i.e. sign with a witness).If the attested estoppels differ from the information provided by the Vendor, you go back to Vendor to work why.

. :)To wit, most of the "what if we have a falling out?"

Thats what the gov't will accuse you of.

@Anthony Russell:"Here Why don't I look over your shoulder the whole day while second guessing you and questioning your methods while you work, and if you complain about it I accuse you of ripping me off and never call you again".

question in the back of my mind.The investor agent may have a different business strategy than yoursSome agents, w/ multiple streams of income, may have firewalls set up between the different parts of their businesses to ensure there's no conflict between a client's interest & their own;  or even between the multiple clients pursuing the same propertyRegarding "what's wrong w/ it" You should have that question in your mind on every property whether it's an investor agent showing you the property or not.  

With further details about both options my opinion could change but in general, I don't care one wit about my personal residence.