Is real estate broker having good career

It would depend on how knowledgeable he is and the area in which he plans to serve. Overall, if he if he knows his stuff, he should be okay as it is a somewhat marketable skill which can be used in many locations. Keep in mind though, different places may have different sets of regulations.

Thank you Sturgis....

Yes, my brother is working in Sales Department of a real estate organisation. He is earning well but the thing here is require a lot of patience which is hared to deliver.