What if I have a past criminal record or a misdemeanor? Can I still become an agent?

In FAQ by Robert Earl

Your best bet in answering this question is for you to contact your State Real Estate Commission:

They are the only ones that can give you a definitive answer to your question. You are right to ask this, but an online site or a real estate company is not going to be able to answer that question for you. You are going to need to get the answer from the licensing source. Many times, just by getting a copy of the licensing application, you will be able to see what is considered.

Take the time and do the research yourself. You will be glad you did and it may not be a barrier at all.