You can also try Doube Eagle Property Tax Consultants (505-883-1414) - they charge 35% of tax savings and (nothing if they do not save you anything) to protest for you! I do not know them and am not in any way affiliated but just learned about their service. Good luck! (Please give me a thumbs up if this info was helpful)
What county in Sandia Park are you located? That makes a big difference. In Sandia Park there is Sandoval and Bernalillo County depending on your exact location. Sandoval does there assessment every odd year, so 2013 is their latest. If you believe it is wrong then you can always protest.