It's complicated and will be controlled by local law.  

I paid $1950 for my 2019 tax returns preparation, which I think is more complicated than your situation--joint filing with my wife, did returns in 2 different states--had 3 properties in MA and one of was sold in 2019, and 5 properties in GA.

To further complicate the matters, they have something called "gateway cities" which have incomes that are generally higher than regular ones.

Make sure your PM is aware of their responsibility to charge the renter if it's determined the problem is caused by neglect or abuse, or if the call was unnecessary. 

Without knowing how complicated the beneficiary sign off process will be what contingencies would you rely on in your contract to protect your earnest funds? 

She is retired and just wants to enjoy her life without anymore "unnecessary ****" (quoted by her).

The 1031 execution isn't that complicated. 

I have found it unnecessary to take time off from my normal job to show a rental mid-day.Greet the prospective tenant when they arrive.

You have to have a 2 year history for conventional financing.FHA regularly goes to 50% debt ratio (and above for a file that's manually underwritten)The appraisal process for FHA is no more complicated for a conventional loan.Interest rates move daily and FHA and conventional are compatible. 

Lastly, ask a lender if there's any complications with financing that property.