My question involves personal property located in the State of: Michigan
last year my ex wife moved in with her father. the stay was short, only about three months before she packed up their clothes and left. he contacted her several times about the belongings and eventually she blocked his phone calls.
fast forward 6 months and she hands over custody of the children to me. grandpa wanted to make sure the kids had their things so he drove across the state and gave me their beds and a handful of toys. upon hearing that he had brought the children their belongings my ex wife threw a fit started calling him up chewing him out, still not asking for her property.
after a while, he got weary of phone calls from his belligerent daughter and her fiance. An attempt to appease her he packed all of her things put it into a storage unit and mail to the key which she received.
now we are going back to court for custody and she is demanding the children's belongings, threatening to take her father to court. what legal grounds does she have when it comes to my children things that she left 200 miles away back in January?

