Me and my fiance have been wanting a dog for a long time having both grown up with them in our family homes and are now in a position (owning a house with a garden and time to walk and spend time with them) to have one. A family friends neighbour recently passed and left a 5 year old chocolate labrador needing a home, we've visited him and are pretty set on rehoming him. He needs some work as he is definitely quite overweight and was also very friendly but did mouth our arms, I'm just looking for any advice on stopping the mouthing, helping him lose weight (obviously walking and sorting his food with the vet) and anything else anyone with experience with chocolate labs or just adopting dogs could offer!