I unable delete my one of character. When I click delete. Msg show item in pearl inventory family and lightstone issue. But I already up equip all Lightstone. And some item I unable remove from family pearl inventory. Pls help

Make sure you removed them out of your slots.  

If your slots are empty or have some in your inventory that you can't delete/remove

then i suggest adding them to your character slots & then selecting to delete them from the slot to remove permanently 

Have to remove all item from all the other character too? How to remove item from family pearl inventory? I have two item can't remove which is spiritbound shakatu exchange certificate & spiritbound restoration scroll. Pleas guide me. Thanks.