All adults should be on the lease and have proper screening done.

I put all adults who will be residing in the home on the lease. 

I've flown professionally most of my adult life and had a lot of fun and a lot of "interesting" moments, ingredients which make me much more tempered these days.  

On your grandmothers behalf call Adult Protection Social Services, tell them the situation, your grandmother because of her age is in a vulnerable position and is about to lose her housing.

An overlay zoning resolution was passed some years ago around several of the universities in Philadelphia regarding the number of unrelated adults who can occupy a house.  

Thieves look for the red tag on the meter and then they go in and strip the home.Our average tenant timeframe in those areas were about 8-9 months and double the staff time to deal with all their issues of month to month life, so from my experience unless you want another job of adult daycare those are the things you are going get coming down your funnel of fun.We ended up selling all of ours in that area and we do not even manage them because it was just too time intensive and problematic.I have done many speech's and had many conversations with investors about when I did "My Time" in the South-East.

I'm no attourney, but I don't let anyone live in one of my units unless I have them on the lease; adults or children.

I don't know electricity rates in your area, but I think for 8 adults with their own electronics plugged in, $200 would be more realistic.Sounds like a good deal though!

My focus is on Luxury Properties, Golf Course Subdivisions, 55+ Active Adult Communities and of course investing with both rehab and flip, as well as rehab and hold strategies.

You are renting to an adult.