Evaluate specific needs and wants and locate properties that fit those specifications. 

Assist in determining the amount that you can afford (pre-qualify), and show properties in that price range and locale. 

Assist in viewing properties -- accompany the showings, or preview the properties on your behalf to insure that the identified specifications are met. 

Research the selected properties to identify any problems or issues to help make an informed decision prior to making an offer to purchase the property. 

Advise on structuring an appropriate offer to purchase the selected property. 

Present the offer to the seller's agent and the seller on your behalf. 

Negotiate to help obtain the identified property -- keeping the buyer's best interests in mind. 

Assist in securing appropriate financing for the selected property. 

Provide a list of potential qualified vendors (e.g. movers, attorneys, carpenters, etc.) if these services are needed. 

Most importantly, fully-represent you, the buyer throughout the real estate transaction. 

Source: www.rebac.net