We believe we have someone smoking MJ in one of our properties

[Cali Skier]

So we went to the property on a maintenance request, and saw a e-cigerette out on the counter.  We have gone into the house an additional time to check on the AC vents and smelled MJ in the house.  

At that time we said we wanted to do a general inspection of the rooms but the tennant's son was there and said that his mom did not expect an inspectoin and woudl not like us to go into those rooms as they had not had a chance to clean them up.  so we expected that.  

We have a very strick no smoking policy on the property that the tennant has to sign before taking the keys.  We have the lease with the Mom, not the son.  We think its the son doing it.  The mom travels a lot.

What is the right approach here?

[Greg H.]

You might not be cut out to be a landlord if you think you can micromanage your tenants.  Medical marijuana is legal and vaping does zero damage to a property.  Smoking cigarettes in a unit does damage due to tar and nicotine which is not a factor with marijuana especially vaping