In your situation, considering the looming deadlines and financial pressures, the following options could provide some assistance and get your through:1.

There was no pressure to set anything up I didn't want. 

The ease of just handing over cash is infinitely more tolerable than a difficult real estate transaction that most likely isn't even understood by the heirs.

It seems like this will start putting downward pressure on appreciation. 

Mortgage rates have already shown signs of easing.  

If he is running the vent fan when he is showering for example he is creating a low pressure system that would suck in any sewer gas.

Once you select a PMS, it's hard to make a switch later, so take some time with this decision but it will surely save you hours and hours of time in the long run since you can automate so many things with ease. 

If someone could look over the documents and help me ease my nerves, I would be so thankful. 

I put them all at ease and tell them all they can stay forever.

Increased interest rates over the last 2 years and increasing cap rates have put downward pressure on multifamily values.