Buying or selling a home is not like purchasing a plane ticket. Every home is different, and laws change every year and vary from state to state. Generally speaking, people purchase a new home every 7-10 years, and a lot can — and usually does — change between transactions. Realtors® are immersed in real estate, and they must stay current with all the updates in regulations, laws, contracts and practices. Once you retain your REALTOR®, they put that knowledge to work for you.