Please, I would welcome suggestions on duties and qualities expected of an executive assistance (P.A.) in a law firm. This is my first job secured having Obtained B.Sc. Business Administration. I just dont want to lose this job as I have been placed on a probation of 3 months and a further tendency to increase my earnings should I make an impressive performance. Please, your suggestions will go a long way as I resume on Monday.
Thanking you in anticipation.

Congrats on getting a job!
You have absolutely no need for panic mode. A job usually comes with job descriptions, moreso seeing as you will be working in a legal firm. So rest easy, and enjoy having a job. One of the first things I expect you will be given as you resume is a job description. However note that duties of an executive assistant can vary from making tea to making photocopies to holding brief for your boss when he is not there. But from experience, there isn't really a one-size fits all description of what your duties may entail.

Thank you so much. It's wonderful. I am getting a relief.

An exec. Assistant job is very exciting as well as challenging. Attributes to ensure maximum effectiveness on the job includes:

High level organizational skills: you must display a high ability to maintain order as you will have to manage the diaries θf your boss, manage the file systems, manage correspondences, etc.
Ensure you have a clear idea θf what should be achieved each day and record such activities in your personal diary.

Highly proactive: you must always take initiative, learn your bosses needs so you can anticipate them and proffer solutions before they arise.

Your major role as an exec. Assistant is to take off heat from your boss by providing top not administrative support.

Wishing you tremendous success in your new job.
Cheers!!!