You can set up more appropriate gathering spaces through landscape/design/providing lawn chairs/etc.But, really, it is very difficult to monitor and enforce guest policy, so learn to deal with it.  

Another technique is looking at their car... if it's full of junk inside or on it's last legs, odds are there will be problems.  

Does she have a leg to stand on?  

About liability I will remove non-sturdy items and tippy chairs but best advice is to be a minimalist this also controls costs.

We sometimes do that in flips for below and above the chair rail in the dining rooms.We have used grey in bedrooms and bathrooms of a flip.

You will have one huge leg up on your investments going into the marriage at that point.

In reality, she can get easily $500 a month, still bringing her rent $150 a month lower, while also giving the room mate a leg up on cheap living via the room rental.  

"Worrying is like a rocking chair, it gives you something to do but doesn't get you anywhere" -Van Wilder With that being said, renting a home is investing, like all investments there is no guarantee of a good return. the only things you can do are a) keep some capital in reserve for emergencies b) screen screen screen c) diversify with multiple properties d) realize that you are only human and you will not make the best decision 100% of time...you cant always win, that's why you should hedge your risk with strong cash reserves just in case. good luck to you!  

You can ask for a written statement from a medical professional stating this person has a disability and requires the dog/s.It is ILLEGAL to refuse to rent to someone with a disability who requires a trained service dog, it would be the same thing as saying no because they have a wheel chair.

I really don't see that they have any kind of legal leg to stand on.So, if you'd rather just terminate the agreement, I'd do that.