Unsure how to handle defaulting sallie mae

My wife has about 70k in sallie mae loans. For the longest the payment was about $1350 a month. We made those payments for couple years but eventually we just couldn't do it anymore. After reading some posts on this subreddit i decided to have her stop making her payments in attempt to have them enroll us in a help program. Eventually after many calls and them telling us they won't enroll us they eventually called us and allowed us to put a few of her loans in a rate reduction plan reducing our payments to around 900. She also has about 25k in federal loans but based on her income she hasn't had to pay them.

Fast forward to today times have gotten hard prices going up and have a kid on the way in November. Ive had just about enough of sallie mae and am ready to default on the loans but trying to figure out the best way to do it.

Some important information we own a home and have two paid off cars. Both cars are in my name and have no connection to my wife. The house mortgage is all in my name but her name is on the deed. Other than that everything is under my name she only has 2 credit cards and just the sallie mae loans and federal loans.

First question would it be wise to pull her name off the deed to avoid any action taken towards our home?

Second question should I expect sallie mae to sell the debt off and deal with a collections company? And how soon could that happen.

And final question should I look into hiring a lawyer to help this process, go through a debt help company, or tough it out ourselves.

Thank you in advance for any insight on past experiences!