MSU transfer merit it not much but https://admissions.msu.edu/cost-aid/merit-based-aid/transfer.aspx
MSU might be all online so know your facts before attempting to negotiate anything
Incase you have more children… Always I mean always fill out the fafsa. I know too many families that you might consider well off, had kids in private school, drive nice cars and live in “the” neighborhood that got financial aid at some schools and not others. Don’t negotiate against yourself. Don’t reject yourself first let the school decide that.