Ten strangers a week put things down a drain no family ever would
Nightly occupancy produces a plumbing failure profile with nothing in common with a residential house.
Disposals meet things that belong in a bin. Toilets meet wipes a household would have learned not to flush. A water heater sized for a family serves back to back showers for a group of twelve and then gets blamed for being cold.
Guests also report nothing. A running toilet costs an owner water for four days because nobody in the house is paying the bill, and the housekeeper finds it on a Saturday morning between a checkout and a check-in.
Write about that pattern directly, one failure at a time, and aim it at owners rather than at homeowners. What breaks, roughly how often, what it costs when it happens on a booked weekend, and which fitting or fixture change stops it repeating.
It converts slowly and it converts well, because the reader is running the property as a business. An owner who accepts the argument does not buy one repair, they buy the same upgrade across every house they hold.