I would just let them know they are not to disturb you unless it's for emergencies.

Patrick's Day, I get a call from the local police saying there was an altercation at the apartment, and they say there was a domestic disturbance in the apartment.  

We wont disturb tenants on multi family properties until we feel there is  good chance an offer would be made.  

I agree with @Daniel MohnkernDaniel you being in California has a whole different set of potential problems as my parents have been on the wrong side of this situation and the end result was the tenants got to stay in the property for 9 months and then they had to pay for their moving expenses because of a "perceived" violation of their rights....Anyways as far as whether the property is abandoned if you are getting rent money then I would not disturb it, if you stop getting money and they are gone then thats a different story.

Tenant shall be responsible for the entire amount of all damages caused by the pet as well as the entire amount of any injury to individuals or property.Tenant is encouraged to obtain a Pet Liability Policy that can be added as a rider to most renter insurance policies.15.Pet must be spayed or neutered.16.Pet shall not create any conflict or disturbance with others and will not threaten any physical harm to anyone.

Can I approach a (different) bank and ask for a home equity, without disturbing the current mortgage (since I did a quit-claim)?  

Remember that to show the property, they will most likely need to disturb their tenants, also tipping their hand that they are selling - in many cases the tenants do not know.b) It sounds like your particular owner has had a number of offers fall through.

This is a really unfortunate issue and can be quite a disturbance when it comes to responding to the effected family.

I don't think asbestos siding is a big deal unless it's disturbed or removed.

Is there any fine print in the docs that people sign saying they can't be obnoxious or cause a disturbance?