Looking for education Re: brokers

[NA NA]

Hi, I'm new to Leasing / Retail. Can someone tell me, how lucrative is the leasing business for brokers? I noticed on one deal I got to review, a broker representing a Tenant got just under 98K for one deal. Of course I'm not going to let those figures cross my desk without getting educated on the business :O).

Can someone tell me, what do you call these brokers, Commercial? Retail? Leasing? How many deals do these people expect to get on average a year? How can I find the annual salary for these groups of people in Real Estate? I'd also like to know what the requirements are to becoming a broker and, why more people aren't focused on this segment of the market than say residential. I mean, I have my own thoughts as to why, but if you are a residential broker/agent, I'd like to hear why you are not doing what I saw. Thanks.