Your law says you have a responsibility to market the property and try to find a replacement tenant, then you can only charge the departing tenant up until the new tenant takes over.However, you can negotiate something with the tenant, if the law allows.

Anything else is the local police department's issue. 

@Quentin JiveryHere are common signs that a seller may be motivated.Listing or advertisement includes phrases such as “motivated seller,” “cash only,” “property sold as is, where is,” “bring all offers,” and “no reasonable offer refused.”Seller is moving out of state or out of the country and doesn’t want to be an absentee owner.Owner is going through a life-changing situation such as a job loss, death of a loved one, or a divorce.Property is sitting vacant or has been listed for sale much longer than the average days on market.Owners want to downsize or move to a nicer climate.Seller is very straightforward about all of the work the home needs, an indication that the owner may be ready to make a deal.Home is listed as an estate sale, by the REO department of a bank, or is going up for auction.Good luck!

They love to blame the accounting department for everything because it is easier than saying "I don't have your money."

So if you want to STR your place after departing, you'll need to look in one of the few Denver-area cities that allow for non-owner occupied short-term rentals.

The investment in hiring them will save you considerably more in the future plus give you piece of mind that everything is setup correctly with the California Department of State.

Per the article above "A debtor (resident or applicant) can sue for a violation of the FCRA, as can the Justice Department.

As Dan white mentioned, you will be working with the planning department to get permits and inspections to have the code violations removed.

It's large and probably easily visible from the street, so there's a good chance he'll get busted if he doesn't pull them.Your local building department should have zoning information available for free online.

You have to talk to the city or county (whatever jurisdiction it's in) to their planning department and ask them about that process.