Anyone looking for a home on the coast should certainly have a mold inspection prior to purchase. If there is mold found, there is probably a water problem lurking somewhere. Anything from an actual roof or plumbing leak, to trapped humidity can be indicative of a more aggressive problem that a new homeowner would not wish to be stuck with some time down the road. If mold is found, then in addition to elimination of the mold, whatever underlying water problem exists must also be handled if the new homeowner wants to avoid a repeat of the same problem some years down the road.