Selling sex is legal. It is illegal however to communicate in a public place that is in view of or next to a school, playground or daycare centre. Communication does not mean verbal communication, just being in public as a sex worker in prohibited places is criminalised.
Advertising for sex work is criminalised. Procuring is criminalised and includes consensual organising. Obtaining a material benefit is criminalised (exemption for those in "legitimate living arrangement" with a sex worker.
No
No
No
No
Protection of Communities and Exploited Persons Act 2014 - http://laws-lois.justice.gc.ca/eng/AnnualStatutes/2014_25/page-1.html Sexual Rights Initiative Database, available at https://sexualrightsdatabase.org/page/welcome Chez Stella - information leaflets on the new Canadian laws - http://chezstella.org/en/guides-infosheets/