Always make sure you do a fixed time tenancy with the option chosen that they move out at the end of the tenancy. If you don't, at the end of the term it can go month to month if they don't want to sign a new contract.
Has he been late paying rent repeatedly? If he's done it at least 3 times, you might be able to serve a 1 month notice.
Read up about your options here:
Landlord Notice to End Tenancy - Province of British Columbia