For the past 30 years we have bought our Labradors From Sue Willumsen at Willcare Labradors in Kingston, NH.
http://www.willcarelabradors.com/
Sue sells exceptional dogs from champion field and show bloodlines and is an AKC recognized "Breeder of Merit". Sue has been a show judge for many years and is president of the National Labrador Retriever Club.
"If" you can get a dog from Sue, I would highly recommend it.
Below is a pic of one of her recent Champion lab and stud dog, Jonathan. This is my dogs Grandfather.
Good luck!
Dan