You may move your license from business to business as you choose. The principal broker or property manager in charge of business you are moving to must log into eLicense to transfer your license.
You can also just leave a business by inactivating your license in eLicense.
Important information if you leave a business
Remember that listings belong to the company you are working for at the time the listing contracts were signed. When you join a business, discuss with your principal broker how outstanding listings are handled when a licensee transfers. This may eliminate confusion later for you and your clients.