James is recognised as a leader in his field by leading legal directories, Chambers and Legal 500 in the specialisms of corporate finance, banking and finance, and insolvency and restructuring.
James is ranked by Chambers [UK 2021]. Clients note: "He presents information in a way that I am able to make decisions while not getting caught up in unnecessary detail." "He's a problem solver, incredibly bright and really good at negotiating." In the previous edition clients say that the "extremely helpful" James Allen "gives practical advice, cuts to the chase and doesn't waste time or effort on trivial matters."
James is recommended and named as a Leading Individual and a Hall of Fame member by Legal 500 [UK 2021]. In an earlier edition, James was recognised as "a sound commercial lawyer with a loyal client following." Another source noted that "James Allen leads the practice and is 'well prepared, pragmatic and straightforward; he remembers discussions and detail from the past".