My son is 6 and his dad has nothing to do with him he has my maiden name but would like to change it to my married name would my husband have to adopt him or can we do it a easier way

A name change will require consent from the father. So would an adoption. Changing his name has nothing to do with making you a legal family, so if that is your goal, you want to pursue a step-parent adoption. An attorney can prepare the petition if the father is willing to consent.

I was able to change my 2 children's last name legally because the biological father did not pay child support in over a year. You might want to check with child support and see what the law is in your state. I love in Texas.
Good Luck and God Bless