Best dates to move to a new house in December 2016

Good day! My family and I will be planning to move to new house by December this year.
Kindly advise when is the best date for the month?
Your opinion will be a great help.

My husband's B.O.D is April 25,1983 and Mine is May 22, 1979. My son is January 30, 2007 and my daughter is April 12, 2010.

I look forward to your reply.