Unfortunatly I have to agree -- Alaskan malamutes are a very high maitenance breed for the average owner. They are quite large (I've seen some reach 130 pounds). I do agree that they are easier to keep than a husky but they have many of the same issues as well as their own set of issues. They do have a tendency to be dog aggressive. They are very stubborn and not an obedient breed by any means. They can not be let offleash because they generally do not come when called. They are very strong and have a natural tendency to pull onlead, so if you are walking down the street and your dog-aggressive malamute sees another dog, prepare to possibly be dragged. They can be escape artists. They blow their coat twice a year, which results in a TON of shedding undercoat. They are very bonded to their pack so they can be very destructive and noisy when left alone. Definatly a breed that requires a great deal of training and attention which both require alot of time -- which I don't think you have alot of, it seems. I would recommend that if you are set on the breed to go to a rescue and choose an older or senior malamute, but I think your mom would be less inclined to get a dog if it is already old and out of it's "cute stage."

Needless to say, I do think you need to research alot before considering this breed. You have the sizes mixed up which tells me you haven't done too much reading.
These are Siberian huskies..

Alaskan malamute...