I agree with Sally,
You would do better to have a buyer's agent to represent you. Typically the seller is the one that pays the commissions, not the buyer. A buyer's agent would help protect your interests, help you determine a fair market value and help assure that all requirements are met for the transfer of the property.
Additionally, iIf the seller owes more on the property than it is worth, a short sale may be involved which could be better facilitated by a skilled short sale agent.
If this home is not available, the agent you choose can keep you up to date on other homes that are on the market or as they come on the market.
For the most part, those of us who answer questions here have buyer representation programs. You can check out agents by clicking on their profiles or searching their websites.
If you are determined to go it on your own, you could write a letter to the owner or look up the owner on the county records. http://www.co.yavapai.az.us.