@Keba3 Stating in your listing that "a fine will be assessed" might help you deter smoking, but in reality Airbnb does not enforce penalty fines on hosts' behalf. Also, Airbnb does not actually collect the so-called a "security deposit," so in practice nothing is forfeited.
Instead, if you want to charge for damage or excess cleaning after the stay, you have to send the guest a Resolution request, and if they refuse the charge, Airbnb has final say over the amount you will be compensated. In most cases they'll require receipts and evidence of physical damage. Claims for smoking violations aren't always successful, and when they are, the settlement tends to be something around $50.
If you find that a guest is breaking your rules during the stay, your primary recourse is to kick them out; in most cases, they'll be refunded for the unused nights. If you want to be able to actually charge the fines and "inconvenience fees" listed in your House Rules, unfortunately Airbnb is not the platform for you.
Another thing related to your rules: you say
You must be 25yrs of age to book and stay. if under 25, the stay has to be approved by host and the host will remain on property during your stay
Be aware that applying this rule would violate Airbnb's nondiscrimination policy:
Age and Familial Status
- Airbnb hosts may not:
- Impose any different terms or conditions or decline a reservation based on the guest’s age or familial status, where prohibited by law.
- Airbnb hosts may:
- Provide factually accurate information about their listing’s features (or lack of them) that could make the listing unsafe or unsuitable for guests of a certain age or families with children or infants.
- Note in their listings applicable community restrictions (e.g., senior housing), regulations, or laws that prohibit guests under a particular age or families with children or infants.
