1. Flood claims are always paid in lien status order. It doesn't matter if your listed as 2nd or not. At the time of a disaster, FEMA will do a lien search and pay the lien holders in order, no matter if they are listed or not. Crazy, isn't it!
2. You should list all mortgagees. Again, it really doesn't matter as FEMA will do a lien search and pay in order.