You might not be able to drain the water from your home, although you can turn it off from the main valve so that if pipes do freeze and break, at least water won't continue to run. You'll find out when you turn the water back on if that's the case!
We have a lake property in a northern state where there are small buildings with water which can be drained, water turned off, then the process reversed in the spring in order to get ready for our return. However, the home we live in when we're there is too old to do that to - we just keep the heat at around 45 and haven't had problems (so far - 7 years!) We did pay for the plumber to check on things after this winter's brutal winter and according to him, all was good.
So far doing this has cost us far less than the damage renters did to a previous home when we went that route. I know some people have been lucky renting out but that wasn't us - twice. So never again. We don't have to pack to return there for summers - all our lake clothes are in our drawers - it makes life easy.
Laws in the US are different than Canada - we have Canadian friends who MUST rent out their home so that it's occupied in order to get insurance; under our current mortgage in the US we are not supposed to rent the home out, and our insurance is for our home and things - not for a renter's belongings or liability. Those things could be changed, of course, but the price would go up for everything I think.