Buy or sell real estate property. The purchase or sale of a home or investment property is one of the most complex and significant financial events in peoples' lives. People typically seek the help of real estate brokers and sales agents when buying or selling real estate because of the complexity and importance of this transaction.Real estate brokers and sales agents can help you find a home, sell your home, make an offer on a home, help you find buyers, and assist you with paperwork. Real estate professionals have a thorough knowledge of the real estate market in their communities. They are familiar with local zoning and tax laws and know where to obtain financing for the purchase of property.Buy and sell residential houses, commercial buildings, industrial property and farmland, property management, mortgage banking, land development, and real estate appraisal.