Having a real estate license allows you to help people buy, sell, lease, and negotiate real estate.
There are two sets of licenses that are issued.
1. Real estate salesperson
2. Real estate broker license.
Generally, one must work as a real estate sales person first, but there can be exceptions to those rules, if someone has attained college degree in real estate or practicing as real estate attorney.
In order to obtain a real estate broker's license, check your local state rules.
1. The process of getting the license sometimes its delayed and you have to acquire a training to pass an exam.
2. From investors point of view it would be that you have the real estate license and you can take advantages of their properties.