On what subject(s) are you an authority?
That is not always easy to answer but I think for me it would be what I used to do at work
I began to work on 2005 on registered retirement income funds and locked in accounts. I became one of the most knowledgeable people in both of the company’s I worked for.
My expertise was in the calculations and in what legislatively was allowed to be done based on where they earned the money