Hi @Donna993 I hope you are well.
Congratulations on becoming a co-host if you're new to the game!
The only experience I had when I started my co-hosting business was 12 months of letting a private room in my apartment on Airbnb, and in no way does in-home hosting give you the skills required to be a successful host or co-host of an entire property listing.
Anyway that's by the by, to answer your question: the % fee you charge could be affected by a number of things such as the nightly price/size of the listings, the number of bookings and the length of those bookings.
A good place for you to start if you haven't already is to gather some information from the owners/their airbnb listings about their nightly pricing and the properties- this will help you work out a % that is going to work for you, factoring in the amount work you'll need to do for each booking.
Your cleaning fee (usually a set $ amount depending on bedrooms/bathrooms and factoring in time) should cover any work you need to do in terms of housekeeping/bathroom essential restocks, and probably won't change unless there is additional work to complete outside of your standard housekeeping routine.
I charge my clients a management fee of between 15 and 25% depending on the property to give you an idea, generally the smaller the property/lower the nightly rate, the higher the fee.
I charge a lot more than management companies in my area, because I wouldn't be able to make a living charging their very low fees (if you're managing 100s of properties you can charge a lower fee on all of them) but I offer a much more detailed, bespoke and personal service- and this is what my clients are paying for.
The property owners can factor in your management and cleaning fees to their bookings by ensuring they have a cleaning fee added to their listing, and by increasing their nightly rates accordingly- but there is a cost to using a third party to provide a service, and I am sure as long as you're demonstrating your value the property owner will be happy to pay.
You might want to consider charging a separate fee for purchasing and stocking up groceries depending on the amount you'd be buying and time taken to do this- I don't know where the listings are based and how easy it would be for guests to do their own grocery shopping on arrival etc
I charge quite a high emergency call-out fee for if things go wrong- the aim of this being to encourage my clients to understand the importance of regular property maintenance to minimise out of hours call outs and preventable issues arising.
Your co-hosting agreement and payment terms etc is something important to consider, if you need some detailed information about this, or anything I've mentioned above then drop me a private message and I'll be happy to help you out!
Best wishes with it all.
Paul 🙂