My thoughts , The buyers agent wont be working on a percentage basis , it will be a flat fee plus any extras . 

I would like to increase my cashflow by about $5000 extra a month.

These extra expenses will probably scare them away.  

That said, if she's claiming she still owns the place, there might be an extra layer of complication if she can prove her claims and/or hires an attorney herself. 

A good custodian will be there to support you and provide education every step of the way; you may find you don't even really have the need for checkbook control (also a good option to ensure you're being extra careful following prohibited transaction rules).

Any extra advice on other considerations would be greatly appreciated!

For sophisticated sellers with highly marketed deals, invest extra time in thorough due diligence.Next, assess the property's condition and estimate renovation costs.

I keep plenty of extra cash reserves to pay for repairs and maintenance.

This compensates you for any potential extra vacancy time during an off-season turnover.

But from a practical standpoint, even 8 adults would exceed fridge capacity, create bathroom bottlenecks, parking problems and put extra wear on the property.