Not always up front though. I list on many sites where you don't necessarily use a "house rules/notes" section for guests to browse through. (like with Air). This info will often only be seen after the guest has already decided on your place, but the reservation isn't confirmed yet.
For example in the OP's situation. Because she sleeps so many guests (around 20 or so??), it's likely multiple family groups have invested a considerable amount of time into finally deciding her place is their number one pick. Now they just want to book the property before another group does. At this stage is where she would likely send the rental agreement and disclose rental policies for the guest to sign. This is what I do with VRBO guests and people booking directly.
Once a group has decided your place is their number one pick, (esp. a large group) - it's highly unlikely that fair rules/charges are going to turn off a "responsible" group from booking. Esp. if choice number 2 costs more, has lesser amenties, futher location, etc.
My flipkey guests and Booking.com guests ONLY see the house notes after I have accepted their booking. With FK guests I am always sure to have them confirm they are okay with surveillance cameras though.