we received a civil summons, from a family member stating that we owe a substantial amount of money. Two years ago they purchased a mobile home for us as a gift. Now they claim we owe them for the mobile home in full, and there was never any agreement written or otherwise stating anything about a re-payment. He is attempting to put a lien on our home will that be possible? We have thirty days to respond to the summons, but what steps would he have to take to file a lien?