A.B. Mahmoud graduated from Ahmadu Bello University, Zaria in 1979 where he obtained his LLB Certificate. He holds a Masters degree from the same university specializing in Company and Labor Relations Law. He worked for 15 years with the Kano State Ministry of Justice rising from pupil state counsel to the position of the State Attorney General and Commissioner for Justice and founded the Law Firm of Dikko & Mahmoud in 1993. He was the Chairman of the NBA, Kano Branch in 1993.

AB Mahmoud trained at various times at the International Development Law Institute in Rome where he obtained a certificate in Law and Development in 1987, and in Legal Aspects of Privatization in 1990. He also holds a Diploma in Sociology of Law from Onati Institute for the Sociology of Law in Spain (1990) and another certificate in Techniques of Privatization from the Institute of International Development at Harvard University (2000). He was at North Western University Chicago where he obtained a Certificate in Corporate Law and Business (2002). He also obtained a Diploma in International Commercial Arbitration of the Chartered Institute of Arbitrators UK and was admitted as a Fellow of the Chattered Institute of Arbitrators in 2008.

AB Mahmoud has at various times acted as an advocate, a solicitor and an arbitrator. He has considerable experience locally and internationally in dispute resolution and complex transactions. He has advised various public sector client and has acted on behalf of Federal Ministry of Finance, Federal Ministry of Water Resources, Independent National Electoral Commission (INEC), The Bureau of Public Enterprises, The Nigerian National Petroleum Corporation (NNPC), The Nigerian National Assembly, Central Bank of Nigeria (CBN) as well as several other private sector clients. He chaired the National Committee on the review of the Nigeria’s Code of Corporate Governance for Public Companies.

AB Mahmoud was elevated to the rank of Senior Advocate of Nigeria in 2001. He is a member of the Body of Benchers, Nigeria’s highest body for regulating the legal profession. He was the former president of the Nigerian Bar Association. He is currently the 1st Vice President of the Nigerian Stock Exchange, Board Member of Dangote foundation and the Pro-Chancellor Kano State University of Science and Technology.