Divorce Fees/Replacing What Was Taken

My ex wife cheated on me and left me with nothing at all. Just need a little help to secure an attorney and get some of the things she took of mine back or buy something similar to replace it/them. I have two children that she will not let me see. I'm a good father, and I just want to be able to see my kids again and have something in my home besides a bed with no sheets, a pillow with no case, and my clothes. Thanks for any help you are able to provide.