I'm not a realtor, but my Mom was for about 10 years, and 2 of my friends are now (one in residential, one in commercial). From what I've seen, it's a very difficult and cutthroat industry, one that requires a lot of patience for the first few years as you develop contacts/clientele and learn the tricks. Plus you can basically forget about having a Saturday and at least every other Sunday off.
There is the potential to make serious cash, particularly if you eventually break in to the high-end residential or commercial sectors, but, like every industry, getting to the higher levels requires a lot of time and ambition.
