I have found the best way to offer a landing pad for those who have lost their home in the Paradise Camp fire, and possibly their business as well, is to register your in-law, cottage, or suite of rooms on the AirBNB disaster page here. I believe there will be many willing to relocate, at least temporarily.
Take the best photos you can and offer a realistic description of the home, suite of rooms, location, how long it is available and price (if any). On AirBNB, you are able to interview potential renters. I am looking for a good template for a rental agreement to protect a homeowner under these circumstances, even if no rent is charged. Contact me if you are in need of one. I hope to have one by the end of the week.