First of all, determine if these are truly spurious liens; some liens, as noted in comments, don't have to be agreed to by the subject of the lien and don't have to be approved by a court. Try Legal aid BC.
If they are, in fact. problematic liens, Canadian law provides a disciplinary framework giving people recourse against lawyers, so you can file a complaint against the him/her. See FAQ: Complaints and Discipline | The Law Society of British Columbia.