Bri is going to need your support, don't let her down by letting her think that finding a low cost spay/neuter clinic is going to make everything alright. It will only prolong the problems.
Good point - but they will be easier to rehome if they are spayed and neutered, don't you think?

It would be great if they could be fostered somewhere in Bri's city, as she could still see them every so often. Maybe the Humane Society has temporary fosters...I am sure they would be willing to help with the whole situation if Bri and her mom asked.