1. A real estate transaction is complicated. In most cases, buying or selling a home requires disclosure forms, inspection reports, mortgage documents, insurance policies, and more. 

2. Selling or buying a home is time consuming. 

3. Realtors have done it before.   Laws and regulations change over time and most people buy quite a few years in between.  This is why it is important to have an expert. 

4. Realtors provide objectivity.  Having a concerned but objective third party helps you stay focused on business and emotional issues most important to you.