Marcus heads AMJ's banking and finance team and is a highly regarded practitioner who has extensive experience in projects, international bank financing, syndicated lending (including acquisition finance), trade and ECA-backed finance, real estate finance, restructurings and bank financed limited recourse transactions. His clients include international banks, financial institutions and agencies as well as sponsors and project companies in sectors such as power, petrochemicals, oil and gas, transport and infrastructure. He has been involved in numerous multi-sourced financings including Islamic financings, multi-laterals, governmental agencies, ECAs and commercial banks. Marcus has presented on several banking and financial services seminars conducted by the Firm. Marcus has authored publications on several banking and finance related issues.

Prior to joining AMJ in 2006 Marcus was an officer in the British Army then qualified in English firm TLT and subsequently practised for nine years as a banking lawyer in Scotland in Scottish law firms Biggart Baillie, Maclay Murray & Spens and Ledingham Chalmers.