As Head of the Immigration Law Group at Perley-Robertson, Hill & McDougall, Warren
has 35 years of professional experience representing individuals, families and
corporations in all aspects of immigration and emigration. Canadian immigration laws,
including the USCMA (formerly NAFTA), are his specialty. His services include complete
representation and arrangement of all documentation for work permits and permanent
resident status, including skilled workers, business immigration programs, provincial
nominee programs, and representation for individuals in all matters pertaining to
citizenship applications and refugee claims. Warren provides direction through the
labyrinthine system of immigration laws and policy, ensuring his clients can get where
they need to go.  Neither families nor businesses can wait while red tape is untangled.
When it comes to moving people across borders, Warren knows where and how to cut
through it.

As an immigration leader, Warren is highly regarded as a practitioner, writer and educator in
immigration law. He is one of very few practitioners certified by the Law Society of Ontario in
the three combined fields of Immigration, Citizenship and Refugee Law. He is a former
Government of Canada immigration lawyer and is frequently sought by all media in regard to his
expertise. He is rated by his peers as one of the top immigration lawyers in Canada. He has
numerous publications to his credit including contributing author to one of the most significant
casebooks of its kind, Immigration and Refugee Law: Cases, Materials and Commentary (Carasco
et al,2007).