You mean your friend is buying a pup from a Breeder who has no interest in helping her care for her pup and learn to groom it?

Ask your friend has she been told about ear plucking? and to be shown how to do it. Mini Schnauzers can have very hairy ears inside ;)
This is something I would start at about 4 weeks old, just a little to start, but they do need to get used to it. Leaving it for the groomer is not an option as some dogs/pups grow hair in their ears so fast that it's cruel to then have to pluck it out all in one session - especially as it can be impossible to separate and will have to come out in a lump :( Little and often is best for both owner and dog/pup ;)
I would use a puppy/kitten slicker very gently and a small and medium toothed comb.
Is the breeder willing to show your friend how to strip her pups coat?