Mobile Scanner for Leases, Addendums, etc.

[James Kirby]

What do you do to get a copy of the lease to your new (or extended) Tenant's? Do you scan and email it, print it and mail it, hand delivers it? Anyone use a mobile scanner to get it done right away with their laptop? 
Looking for ways to simplify the process and not have anyone say - This was added or this was redacted, etc.

Thanks in advance for your time,