If the home is for sale a local realtor can work with you to schedule an appointment to preview the home. If it is not for sale, they can help you in your search to find another home. Be sure you work with a Buyers agent and understand the process of home buying. The first thing I would suggest to you is speak to a mortgage person and get pre approved for a mortgage. They can give you an idea of what your payment will be, remember you will have taxes and insurance to figure into the monthly payment as well as the interest rate and some closing cost. If you are paying cash you will need a letter from your bank to show proof of funds when submitting an offer.
Good luck to you