Okay, so this is how it works... If I do not help you find and buy a house that fulfills your goals, you pay me nothing for my services.
Of course if I am going to commit my time and effort to helping you achieve your goals I will need some assurances that you are committed to the process. First thing that you will need is a pre-approval letter from a lender, which is a firm commitment from a lender to fund part, or in some circumstances (if you are a veteran) all of the price of the home you wish to buy. There are certain stipulations required before the lender will release the funds of course which are discussed in my post titled Pre-Qualified vs. Pre-Approved vs. Final Approval. Once you have that bring it to me and we will further discuss your real estate goals... time frame, neighborhood, bedrooms, bathrooms, amenities and the like. From there we will decide if we want to work together. After that I will commit on paper to be your representative in a future real estate purchase and will handle the negotiation, legal documentation and scheduling of certain key things that need to happen before you can get the keys to your new home.
Sounds fair right? How do I get paid? Well, the way things work in California and most traditional real estate transactions in the US is that the fees for the buyers' representative are built into the cost of the home. The agent is paid from the proceeds of the sale. Please see my post entitled Buyer's Agent for a more in depth explanation.