Where are you reading that the 10 month period means they only have to give 1 month's notice?
Edit- It is this?
If a periodic tenancy of residential premises is for a period of more than one week but less than one year, that tenancy is, for the purposes of terminating the tenancy, deemed to be a monthly tenancy.
If so, keep in mind the definition of "periodic tenancy."
(i) “periodic tenancy” means
(i) a tenancy under a residential tenancy agreement that is
renewed or continued without notice,