Hi @Anna1910 sounds like you know exactly what to do and how to do it in terms of getting this listing up and running smoothly and then being successful which is great!
The most important part you have left til the end of the process! (fees) I guess because you're working with friends/parents of those friends.
I co-host, and offer a range of services: for interior design and set up I charge a % fee of products and furniture purchased, you might consider the same.
In terms of operations I work with hosts in 2 ways- a % fee of a single night stay for bookings on listings I don't work for on a full time basis (say a listing is £200 a night and a host would like a prep/clean, check in, guest support on-stay and check-out for a stay of 2/3 nights or more I work around the £100 mark)
If I am managing a whole listing end-to-end you can work by doing the same, or charging a higher % fee of the total host pay-out (say 30-40%) or working slightly differently and charging the cleaning fee on the listing plus a smaller % like 15-20%, but then you're tempted to artificially inflate the cleaning fee on the listing, which is what some of the larger management companies do.
I'd suggest to go for an option which works best for you and your customer- perhaps sit down and crunch some numbers, even together and come up with something that works.
Remember in this situation you are doing all of the work to get the listing up and running and to maintain it, and you should be charging as such- think about what you'd like to earn as a minimum per hour and factor this in to your figures!
Best wishes
Paul.
