Hello Herra, I sent a reply to your post but decided to send another one!
There are many things that will help your Mom as time goes on here is a list of equipment that she might find helpful as time goes one
Power chair, Peg tube (feeding tube), BiPap machine to help with breathing, Lifts to help her in and out of bed and save your Brother's back! Please do contact ALS and see what they can help you with.
There is also a lot of medications that will help her for feel more comfortable.
Jane