I would be happy to help you out in researching how the market has performed in New Milford over the past year or two. If you can give me a call, we can set up a time for me to come over and see your home so I can give you an accurate market analysis. My office does a great deal of business in New Milford, and I am very famliar with the housing stock there!
Coldwell Banker RE/Oradell
201-262-6600 office http://www.BarbaraOstroth.com
Normally an appraiser will look for sold com parables back 6 months at the most so going to 2010 is not going to give you a good answer. Why not contact a couple Realtors and ask them to do a market analysis for you and save you doing all the work. It's free.
Consider inviting a few local agents from different realty companies and ask for a cma, comparative market analysis; review the data, ask opinions and go from there; cma's are provided free of charge by most agents.