Hi, Meagan. The short answer is yes, it's possible.
The longer answer is that there may be a procuring cause dispute between your old broker and your new one. Agents typically work for a broker and your purchase agreement, and other agreements, are actually with the broker not the agent. When you are represented by an agent/broker a legal "Agency" is created. Some possible reasons to seek termination of Agency could be due to the broker's/agent's professional abilities or conduct. Examples could include misrepresentations or failure to disclose, lack of knowledge with an area or type of property, being non- responsive to the client by failing to be timely or return calls, disclosures of conflicts of interest, self-dealing or negotiating skills. You should be certain that any Agency you have with your old broker is properly terminated. You should advise your new agent of the previous purchase agreement.
Many difficulties between clients and real estate professionals result from misunderstanding, miscommunication, or lack of adequate communication. If you have a problem with a real estate professional, you may want to speak with them or with a principal broker in the firm. Open, constructive discussion often resolves questions or differences, eliminating the need for further action.
If your agent is a Realtor (not all agents are Realtors), you could also seek help from the CAR Ombudsman at http://www.car.org/marketing/clients/resources/
I am a real estate broker qualified to advise you on California real estate matters, not the law. If you desire legal advice, consult with an attorney.
Hope this helps!