I don’t run a charity though so I expect to be paid rent on time and first before paying their whatever bill.  

You're not a charity. 

It is likely she will be able to get a charity to help her with the payment if she cannot afford to fix it. 

@Isabella G.Instead of trying to be a charity yourself, perhaps go down to the city council and befriend someone there and discuss having them see what kind of things other cities are doing to solve this problem and then implementing it in your city.Unless you're rich, in which case you can spend enough of your own money to solve the problem.Good Luck!

I want to live comfortably and know that my standard of living is not necessarily correlated with my job.I want to start a charity, and make a positive impact on those I know and those around me.

When each home is sold/rented, the proceeds are donated to a charity selected by all members of the group!

If the community is helped because you fixed up a former dump, fine, but trying to socially engineer your investment makes you a charity.4.

you are running a business not a charity, if they dont pay rent, you dont pay your mortgage and they get thrown out either way. 

Disclose what happens on day 8 if the items are not removed:  you will call a charity or two and let them take what they can and that you will have a receipt from the charity sent to him (photograph everything that is there and everything removed; obtain a receipt for yourself and send one to him).  

This is a business not a charity.