What is her goal for the dog? Is she wanting just a family dog or will the dog be used to hunt? If a family dog is her goal, a pup from strong hunting lines might be a bad choice, they will have more drive and therefore not as mellow. Also labs have a lot of health issues so she will want to choose a pup whose parents have been tested for the issues that labs have, such as hips, eyes and elbows. Give me a bit more info and ill see what I can find.