In Canada, only licensed consultants (RCICs regulated by the College of Immigration and Citizenship Consultants) and lawyers can legally charge for immigration advice. Before paying anyone, verify their licence on the CICC public register. Walk away from anyone who guarantees approval, sells job offers or nominations (that is fraud and can get you banned), or asks you to sign blank forms or hide information.
Good professional help is worth it for complex files; fraud "agents" can destroy your future. If you want honest, licensed guidance, see our Immigration Advisory service.