It might not seem necessary to involve a real estate professional in a transaction where a buyer can deal directly with a builder. However, by using a real estate professional, you have someone to protect your interests and guide you along the right path. Here are 10 advantages to using a real estate professional when buying a newly constructed home.1. Just as a real estate professional calls on experience and knowledge of an area to help buyers locate pre-owned homes in a community, he or she c.