A native of Wales, Mr. Reardon-John holds a law degree from Cardiff University, where he also undertook the Legal Practice Course.

Mr. Reardon-John trained with the National Health Service where he was involved in high value clinical negligence cases and also assisted Counsel working on the E-Coli public inquiry chaired by Professor Hugh Pennington on behalf of several Local Health Boards. On qualification, Mr. Reardon-John moved to a well-known international law firm where he specialised in fraud litigation and asset recovery on behalf of financial institutions. Since joining Martin Kenney & Co. in 2012, Mr. Reardon-John has worked on matters in several jurisdictions.

Mr. Reardon-John was admitted as a solicitor in England and Wales in 2008 and in the British Virgin Islands in 2012.