What do I do if my now ex has changed the locks on our house where my son and I have been living for over 6 months and I get mail there and hAve bills in my. Name and he won't let us in is this legal

What Scott said. Meet the police at the home and they will tell him he has to let you in. If hes not there and you want them to kick the door in they can do that

No it is not legal. He would have to go through the eviction process with the Osceola County Courthouse to legally get you out of the house.

Call and ask st cloud pd