Besides, the two things about sex for money that are unquestionably criminal in Canada are about place: negociating it in a place that's in any way public, and providing the place where client and supplier complete their deal. Holding the lease on that "incall nest" could make her a bawdyhouse operator, a job description most would rather leave for someone else, especially if they're being so particular about being just an MPA and not an SP.
You can get a great, sensual, erotic massage in a non-commercial setting from an independent, and that's how better to describe your search in this forum.