@Greg M. yeah totally, I am proceeding with caution and won't do anything until I get the proper advice from my attorney.

We are in the process of starting a few more businesses, only one of which has focus on real-estate, and would like to make sure our structures are in place properly, allowing us in the future the ability to sell or add partners or investors.Any recommendations would be greatly appreciated!

I've never accepted money from her, never officially acknowledged her as a tenant in any way, but this is NJ where getting rid of a tenant is notoriously difficult.

Unless your property happens to already have the proper Zoning for a 3-Unit building, which is based on the Zoning designation and the size of your lot, then you would be very lucky! 

If you've done the proper research, then you know that KT is not ok in any circumstances.

In most cases a proper cleaning will likely do the trick.In regards to the proving it part, I agree with @Jill F & @ John Teachout - you do not need to prove it and smoking smells. 

This isn't for eviction purpose, this is for tax purposes so the state the property is in can properly tax you.  

It was kind of obvious when the production/delivery numbers were released recently because the announcement was from Austin but glad to have official confirmation.

Typically the attorney that helped you set it up will offer up their address or if you are out of state you will need a registered agent in state to receive official mail, that address will work.  

The AC may also not be sized properly for the unit they are in.