He is the Principal and Founder of the Law Firm, Yusuf O. Ali & Co, Ghalib Chambers, with offices at ILORIN, Lagos and Abuja with Ilorin as the head office.
Yusuf Ali SAN is a member of many professional bodies such as:
- Nigerian Bar Association
- International Bar Association
- American Bar Association
- Commonwealth Lawyers Association; among others.
He has won and conferred with many fellowships such as:
- Fellow of the Chartered Institute of Arbitrators, (FCIArb) (UK).
- Fellow Chartered Institute of Arbitrators (FCIArb) (Nigeria)
- Member Chartered Institute of Taxation Nigeria (CITN)
- Fellow Society for Peace Studies and Practice (FSPSP).
- Fellow Dispute Resolution Institute (F. DRI)
- Honourary Fellow, Nigerian Minning And Geosciences Society.
Yusuf Ali SAN also served and is still serving on boards of many Companies and Institutions. He was the Chairman Kwara State Law Reform Committee. He is a member of the Board of Trustees of Al-Hikmah University Ilorin. He was the pioneer Chairman, Council of Public Defenders Kwara state. He is the Chairman Board of Directors Apex Microfinance Bank Ltd
