She was on oxygen, frail & 78, she collapsed & was found barely alive by her sister.

Baring that, keep calling. 

At the bare minimum you should run a background check on this person and have them added to the lease.

Even COVID only barely slowed the trend in 1H20 and the activity resumed in 2H20.- A flood of new capital driven by flight to safety from underperforming sectors (office, hospitality), as well as new capital from other areas (e.g. stock market is at the all-time high, but the future is uncertain).- Big boys are coming to the sector - case in point, Blackstone acquisition of Simply Self Storage.- Downward pressure on the cap rates from the competing new capital, while, at the same time, new supply applying downward pressure on rents.

No more blizzards of paperwork, emotional buyers or after months of working to land a listing, suddenly finding out that the seller's second cousin's babysitter's boyfriend has a great aunt, who while barely able to walk, still has her real estate license and she's going to get the listing that I was working for.So while I'm no longer involved in residential real estate, I strongly recommend EXP for those looking for a first or new brokerage. 

He told my partner that my tenant and him got into a fight and he had to restrain my tenant and barely made it out with his life.

 I have had a successful relationship in the past based on these terms: a $200K loan at 5% in exchange for, in part, getting to watch (and participate in) a full scale renovation as it happens (plus interest of course). 

Even the hint of a lie is an embarrassment that can barely be borne.

So I have a bare minimum knowledge of the techniques used within Rental Property Investing, However, I learn much better from doing.

If not, it's a non-starter for me.After you move out, will it cashflow in real terms (i.e. after all of the expenses you will then bare, including management, does it cashflow at a level that is acceptable for you?