Yes, it does sound reasonable but be ware of scams like refinance terms, prepayment fee, and other issues.

Are others seeing this as a scam or more of a commitment of their services well known in the industry from other mortgage brokers? 

She's made me very nervous and it seems like she's somehow running a scam on me.

If you have attorneys representing both buyer and seller with their clients best interest at heart there should be less scams and people being taken advantage of.

It's those maniacs that buy homes cash via quit claim deed off of craigslist that really get screwed.Make sure your property manager is a licensed real estate brokerage.Google Clayton Morris scam and/or Morris Invest scam for a cautionary tale of what not to do when buying turnkey real estateUnderstand you can not eliminate all risk, only mitigate it.

It's those maniacs that buy homes cash via quit claim deed off of craigslist that really get screwed.Make sure your property manager is a licensed real estate brokerage.Google Clayton Morris scam and/or Morris Invest scam for a cautionary tale of what not to do when buying turnkey real estateUnderstand you can not eliminate all risk, only mitigate it.

Also, it is likely the address is being used as a "scam address" for items purchased on stolen credit cards.

Seniors not only make mistakes but are also targets of scams.

This is total Pareto Principle.  80% (or more) of your time will probably be devoted to placating him over this minutiae.Honestly, you've let him take control and it's time for your to reassert yourself. 

Now it’s a 2,000 less It’s a scam.