What are the details of your home search? What city? Address? School system are you looking for. How many bedrooms and how soon are you looking to move?
If you are looking for a lease purchase, most owners are looking for down payment of 2-4% of the purchase price of the home. This locks in the price at the end of the term (usually one year, but can be longer). it's beneficial because the though the market could change and the value of the house can rise, your sales price is locked in.