Should you fail to enforce the lease and ensure this right, your tenant can break the lease. 

A good management company will have all the current lease forms and related documents that are up to date, legally enforceable, and that have the clauses you need to protect you.

As mentioned by Anthony the liens, code enforcement and nuisance abatement for example, remain attached to the property after the tax deed sale and can be for thousands of dollars, sometimes hundreds of thousands of dollars.

Proper identification of tenants isalso needed if you want any chance of having local code enforcement write tickets against the tenant and not the owner.5.

@Minka Sha I would personally (or direct your agent) to follow up with code enforcement and building permit office.  

Some law enforcement agencies report every infraction, while others can under report, and there is everything in between.  

Tell them you have already been called by law enforcement for questioning about his drug use or possibly being a dealer.

Best to use the one they recommend, as they will be the one you turn to for help enforcing it at times.Ask around and get some referrals from other property owners if you don't have a relationship with an attorney already.Matt

Maybe talk to local law enforcement to see if it's a feasible option to have a drug dog show up on the premises to identify that illegal substances are there.  

The exception is when code enforcement limits the number of residents.