Real Estate Research
There are a lot of resources on the net to help you research real estate in advance of visiting New Hampshire. If you use http://www.nneren.com to look for property listings, you will notice on many of the listing sheets book and page numbers. This refers to the book and page in the county registry of deeds. To access these deeds visit http://www.nhdeeds.com and select the county the property is in and search for the deed. This will allow you to see if there are any deed restrictions or easements on the property, as well as get an idea of the boundaries. Many towns in New Hampshire use GIS http://www.granit.unh.edu/ to keep track of properties, and some of them make it available online with their tax map overlays. Search for the town's website on the net, and look in the assessing department section. You may find the tax maps or a link to a GIS database. Either one should give you a good idea of the shape of the property's lot. Using one of the various map sites can give you a good satellite view of the property in question, and if that looks good, http://bing.com/maps offers "bird's eye" views of New Hampshire south and east of Concord, giving you the chance to see an aerial photograph of the property from 4 directions.