Salute @Mohamed0,
Thank you for the massage and for proposing to me to see your great house (Riad)
The new licence in comparison with the wedding party licence, i think, are different.
Riad as business place : Cause you have a riad and a riad has the same business licence as a hotel, so, i think, that you need to ask about that procedures
Or if it is possible for you, could you ask some Airbnb hosts from fes, which have Riads, about the legal procedures that they had made.
Also, could see this Airbnb link, if it is possible for you :
https://www.airbnb.com/help/article/2229/why-am-i-being-asked-to-confirm-my-business-information
Riad or house as entire place for hosting : About this, i think, could be as a normal rent. Also you could see this link :
https://www.airbnb.com/host/homes?from_footer=1
Thanks,
Miloud