For those who question the difference between this and a hotel, I don't see why chilul shabbos is inherently part of operating a hotel on shabbos. Many shomer shabbos hotels would beg to differ.
Many are nichshal, but I believe it's possible to operate al hatzad hayoser tov.
You'll probably have to resort times to various kulos (such as the famous eliyahu raba )
For further edification see shu"a o"c 276:2 and the nosei keilim