Randolph practises exclusively in the field of Canadian immigration and citizenship law. He is certified by the Law Society of Ontario as a Specialist in Immigration Law. He has been listed in Best Lawyers in Canada for immigration law for several years, including 2023. Additionally, he has been recognized by Who’s Who Legal as a leading expert in corporate immigration in Canada, and as well has been ranked by Chambers Global. He has served as the Associate Editor for The Immigration Law Reporter (Thomson Reuters) for several years and is the co editor of the publication A Practical Guide to Provincial Nominee Programs in Canadian Immigration Law.

Randolph has a wide-ranging practice that includes matters pertaining to the transfer and relocation of executive and managerial personnel. He advises on
a wide variety of matters related to applications for Canadian immigration. Randolph also represents clients in immigration-related litigation. He has argued cases before all three divisions of the Immigration and Refugee Board, as well
as the Federal Court of Canada.