No documents are needed from you you should get the mothers and fathers pedigree history and if they are registered with any organizations such as the AKC copies of those. and shot records.
Why Breeders Ask for a Deposit on a Puppy. Following an accepted puppy application, most breeders require a deposit to hold a puppy or to hold your spot in line if there is a waitlist. Most often this deposit is nonrefundable. Finally, many breeders require further payments once your puppy is older.
Deposits are completely normal. Some breeders even ask for them in order to be put on the waitlist. They help the breeders to know who is serious and to know that the puppies definitely have a home.
You'll need to check: their health report from a vet, including evidence of their vaccinations and flea and worming treatments. their microchipping documentation - this is a legal requirement for breeders to have had any new puppy microchipped before they go to their new home.