Provide the tenant a copy of the receipt,  keep your own copy,  and forward a copy electronically to the tenant (email, etc) if possible, and store it yourself in such a manner that you have proof of date it was created. 

Can I e-mail it and have it filled out electronically?

You can order on Amazon (search for wifi electronic lock), ship it to your handyman, & set the codes yourself for each guest or have your overseas team of VAs do it for $4/hr

We finally got him paying proactively, electronically.

Extra voltage also could fry electronics or motors.

I have tried a couple of different websites and have not had great luck. I used Dwolla with technical problems on both my end and my tenants side and I have tried sparkrent and have had tenants struggle with use and s...

For example, I only accept electronic payment, but any method as long as there are no fees involved.

We also took a further step by buying and providing tenant additional trap/dicon as well as the electronic repellant.

Electronic payments via an ACH debiting service to either a business or your person are the only way to go.

We do not allow smoking (electronic or traditional) in or on any of our properties.