A person contacted me about buying it for a place for women to stay as they are recovering from drug and alcohol addiction. 

They are GREAT for 2 years and then seem to disappear, go to prison, become alcoholics, or die.

For example, if they add a cooking or alcohol aspect to the salon, that could cause your insurance rates to incease.

Finding a mentor among strangers on the internet is like looking for a spouse on the Yahoo forums; it all looks good until you meet in person and they drain your bank account, attempt to poison you with antifreeze, and run off with your 57-year-old alcoholic uncle.

Since you have a lease with both responsible, why let one off over the other.Some renters "Duke it out" all the time, and then get back together when the alcohol wears off.Follow your contract, does it allow you to "Boot" one signer when another asks you too?

I have a tenant under lease until next April. He was a recovering alchoholic, currently back drinking. Would get drunk and text during the night sometimes to 3am. Said we weren't going to allow it, so now he emails wh...

Or maybe do a happy hour somewhere and offer snacks while they purchase alcohol! 

Which would have ex-alcoholics living in the house.

They have a kitchen with food options and I'm sure some additional non-alcoholic beverages.

I always do my business over an alcohol drink.