@Jamielynn1 It is possible to make a second listing with the increased occupancy, but it has its downsides. For one, it could put you in a bind if there's an unexpected delay with the alarm system. But also, a second listing means double the hurdle of getting those first few reviews that establish your home's reputation and attract the discerning guests. It may be better to wait until you've had a few months of experience before taking larger groups.
One thing to be especially cautious about: your beautiful house is going to attract a lot of people looking for an illicit party venue. It ticks off all the boxes - lots of space, hot tub, new listing, remote owner - and just saying "no parties" does not deter these people. Considering the fire codes, I'd suggest a strict rule that no unregistered guests/visitors may enter the property at any time, and be vigilant about enforcing it.