In short, the answer is yes of course and yes be careful. In NH the lakes and ponds are frozen mid-December to mid-March. You are purchasing a home with the most important attribute that you can’t view, the waterfront bottom. The lake bottom can be sandy, rocky, hardpan or mucky with weeds. Just because the shoreline is sandy that does not guarantee sandy bottom swimming. Concerned what the bottom is, talk to the neighbors, get an ice auger and drill some holes in the ice to confirm you are buying a lakefront home that you will be happy to own. ( You can not add sand per NH Shoreline rules ) 
If you are looking for an expanded inventory wait. During the winter months, many homes that did not sell in the fall are shut down for the cold winter months. New listings and expired listing will start to come on the market at the end of March and the whole month of April into May.
The typical winter inventory in NH is about 100 homes in the greater lakes region. In the spring the inventory will expand to 400 homes. Additional key dates for increased inventory are Memorial Day, Fourth of July and Labor Day.
All I can say is be patient and do your homework. You find that dream home. You want to build memories not a reflection on every visit of what you should have done.
Looking for that perfect NH Waterfront Property? Call The Dream Team! We’ll make your Dreams come true.
( check out lake homes at our website ) www.nhlakesrealty.com
Call Lady or the Lake Realty at 1-888-737-5550 or e-mail at info@nhlakesrealty.com or text 603-566-6608
New Hampshire is a great location to retire or raise a family. No Sales Tax - No State Income Tax - No Inheritance Tax