While I own a home, it unfortunately does not have a million extra rooms for my collection of snakes (I wish!). I've had to deal with mites a couple of times, unfortunately, and now pre-treat all animals/enclosures for mites, which has helped tremendously.
So given the realistic constraints of space when housing multiple animals, just remember to follow common sense practices: Pre-treat enclosures/animals. Wash hands/change clothes between handling or handle on separate days. Don't share decor/supplies.