What is the First Step to Buying a House? - Number 1 step get pre-approved through a lender. This will answer a few other important questions: What kind of home can I afford? How much do I really want to spend? and based on those two answers it will answer what kind of homes to look for?
How Many Houses Should I Look At? - No set number. You look until you find what is right for you and your needs.
What is a Seller's Market? - Based on supply and demand. Seller's Market is a lot of buyers and low inventory. A Buyer's Market is the reverse.
How Much Do I Need for a Down Payment? - No set amount. Depends on your loan and your financial situation.
How Do You Pay An Agent to Help You Buy a House? - A buyer does not pay for their agent. When you buy, there is no fee. When you sell, you pay both agents through the proceeds of the deal.