Experience offering Virtual Memberships?

After giving it a lot of thought, my space is finally considering offering a virtual membership - basically providing a physical business mailing address, mail scanning & storage service, event access and a few hours of conference room time each month. When thinking through how this would work however, I realize that these businesses would be giving us permission to actually open, scan and send copies of their physical mail (which sets off a few alarms in my head from a legal perspective). Does your space offer virtual memberships like this? If so how do you tackle this issue? And of course if not, what kinds of services do you offer?

Thanks in advance,

Jon

KOI Creative Space