Section 5(1) of the Act states that for a member of the legal profession to get the privilege award of the rank of a Senior Advocate of Nigeria (SAN), he must have achieved the following;

The applicant must be in full-time legal practice.
He must have distinguished themselves as an advocate.
Must have made a significant contribution to the development of the legal profession in Nigeria.
The rank can also in some exceptional cases be awarded to members of the legal profession who have distinguished themselves as academics by making substantial contributions to the practice of law, through teaching, research, and publications that have become a major source of reference by legal practitioners, judges, law teachers, and law students.

Below is the complete list of Senior Advocates of Nigeria (SAN) from the year 1975 to the year 2021;

https://kikiotolunews.com/complete-list-of-senior-advocates-of-nigeria-san-1975-2020/

I wonder how Malami became a SAN