Evicting a tenant for marijuana use?

[Ian Loonce]

I moved tenants into a duplex where I'm currently staying.  It is a very cheap unit near a university.  They have done nothing but complain and make up complaints.  For example: "nobody cleaned it before moving in"  We cleaned the unit 3-4 times, removed dirty carpet, new paint and poly etc.

She called my property manager about 6 times yesterday about ants in the unit.  Even though the lease states we are not responsible for that.

The girl moved in and is proving to be a little crazy.  She may have lied about being a student and her job as well as shes home all day.  Her boyfriend hasn't left since moving in.  I saw the other night what looked like drug dealing activity from my window. The neighbor saw it as well.

Every day I walk up the stairs, it smells like marijuana coming from their room.

Can I evict them for this or do I need to call the police?