I am in the processes of trying to change my twins' last name to my own. Currently it is hyphenated with mine and their biological fathers. Father has been MIA for 2 years and have not been able to track him. Trying to make it less confusing for the kids in school but I don't want a judge to perceive that I am changing their last name out of spite. The kid's do not really remember their father and I don't want to upset them again. Had enough problems when he took off. Also unsure of how else to show that I made a reasonable attempt to contact him when he doesn't put any bills in his name and apparently is in hiding from creditors. Please help!