Agents undergo extensive training before receiving their license and most companies provide continuing educational programs. Real estate agents can provide services to both the buyer and seller. Agents must disclose, in writing, which party they represent. You will be asked to sign this disclosure acknowledging you have received it. Agents are usually paid by the seller, at settlement.
All commissions are negotiable.
There are also limited-service companies that will work with you for a flat fee rather than a percentage commission. As a buyer, you may hire an agent to represent you. This is known as buyer agency. Most buyer agents will expect you to sign a retainer agreement and pay an upfront fee. The retainer fee is usually refunded when you settle.