From a practical point of you the question is are you ready to buy this house? Have you visited with a lender and taken all the financial steps necessary to buy this house? If the answer is yes then your next step is to find a Realtor that will answer your questions and work for you to make your purchase an educational, exciting experience.
If your answer is no, then a Realtor might still be your best option to help you find a lender to work with you on your purchase.
So if you are seeing a pattern here, there's a reason. A Realtor should be your trusted advisor during your search and contract period. Find that person that fits your personality and it could a great experience for you. Good Luck!