I was at a mobile home park this weekend and they showed me a home that would be available in a few weeks. It had a very severe mold problem in the interior. The person doing the maintenance said they would be removing the walls and insulation and part of the floor that had mold and this would solve the problem. However, they weren't removing the entire floor. Is it at all possible to remove this mold just by doing that? Wouldn't it be in the furnace and possibly under the rest of the floor?