If the house wasn't totally submerged, I would think a new load of sheet rock might make them habitable. Just not sure who is going to have the final say on what ought to be and what will be. Then again, how many of the old homes were sheetrock, and how many were plaster or perhaps something else less easy to tear out and redo.
If the house wasn't totally submerged, I would think a new load of sheet rock might make them habitable
IMO, in most cases, it will require a lot more than that. A lot of the houses will have to be stripped down to the frame and that's IF the foundations are in OK shape. Floorboards will be buckled, insulation saturated... Rehabbing is extremely labor intensive. In a lot of cases, it will be more cost efficient to bulldoze & start over.