HUGE red flags for me.

$5,000 for a pup with NO guarentee of any kind?
come on.. gimmie a break...

a price like that sounds like what youd expect to pay from a good show dog breeder. not some freaking smoe like this...

plus 20 puppies?
what does this guy have in his home?
Masttifs(that generally have huge litters) magicaly pop out Pom pupies?