 In 1927, Greenfield was appointed Alberta's Agent General in London, England. The appointment was controversial and was perceived as a patronage reward even by some UFA backbenchers. Liberals also accused the government of benefiting the Hudson's Bay Company, which owned the London office that the government leased, more than Alberta. Even so, Greenfield's performance in the position was well regarded: his personality was better-suited for his duties there, which included the promotion of Alberta's burgeoning oil and gas industry, attracting English immigration to Alberta, and acting as a guide for Albertans visiting London. It was in this last capacity that he welcomed Brownlee to London, where the two met together with British immigration and financial officials.
