Hi,
Well after hearing everything you are going through I'd pass on getting a dog from those people.
You need to have a long lasting relationship with the breeder you get your dog from. These are people that should be not only able to but very willing to help you for the rest of the dogs life.
I'd also be very suspicious of a breeder who was reluctant or openly unwilling to take one of their dogs back.
When we were searching for a Newfoundland it was a big hassle. I talked to dozens of different breeders, checked OFFA reports, called people all over the country. I actually started to get discouraged before finding the breeder we're getting our boy from. I not only wanted parents that looked how I think Newfies should look, but had taken the time to champion her dogs, had good health checks, and was a member of at least their local Newfoundland club. Beyond that I wanted a breeder who was easy to talk with, one that I got a good vibe from. I turned down several breeders based on not feeling "right" about them.
If you're getting such a bad vibe I'd kiss the deposit goodbye and move on. You'll be happier in the long run.
Either go with the pit that you're already starting to bond with or search out another Newfoundland breeder.
Cat.
Serenity: 4yr old Fila Brasileiro
Kaylee: 8mo old Fila Brasileiro
Tanstaafl: 11wk old Newfoundland
The rest of the Zoo.