Random note: There's a coffee shop around Front & BlueJay Way that has $1 espressos.
It's called Cannabis & Coffee. Cheapest (delicious) coffee in the city as far as I'm concerned. Also they plan to put CBD in their coffee when it's legal.
Jeffsus, you already know what to do. February is more than enough notice. You can kick him out pretty much anytime since he's renting a room from you and not a separate space. If it's ruining your enjoyment of your own home then fuck it.
Also, congrats on cutting out the substances.