Hi LauraBeth, I am sorry to hear these struggles.

A few years ago, I was involved in a similar custody situation. I stepped up for that child by contacting the counsel of the party I felt were the better guardians and disclosing a lot of sensitive information. I went against my family. Years later, I know I made the right choice and am happy I did so. I advise you to exhaust your options to ensure your nephew does not get awarded custody unless he is a fit parent.

God bless and keep me posted