

Will they need to install new software after you set it up, or just have user storage and maybe do system updates?
What will they be doing with it?
Do you have a backup storage location available?
How many users?
What kind of permissions do they want various users to have?
How critical is the data that will be housed on the server?
This basically means that the system will rot over time and will need to have someone who knows what they’re doing to maintain it. If they don’t know enough to do the initial setup, then I would worry about how quickly it would go awry after you no longer have access. given the number of users and the assumed criticality of the data, I would have a long conversation about what can happen and what their plans are