If you're worried about billing/mortgage statements, just set that stuff up electronically. 

and refunds to guests2) Hire amazing people - cleaners, handyman, recruit some neighbors to help fill in the gaps, & self-manage or hire an offshore VA to manage the property if you'd rather make yourself rich instead of making a local property manager rich (more on that here: https://www.biggerpockets.com/... )And make sure that your cleaners and handyman are not only doing a top-notch job of keeping the house in pristine condition, but they are also reporting to you (or to your PM or to your offshore asst) every little thing that needs to be upgraded or replaced so that you can stay on top of it and take care of things before you hear it from your guests in the form of guest complaints and bad reviews.

But I'm just not sure if the documents have to be the physical documents that are signed, or if there's a way to do it electronically, and how they'd be transported in a timely manner (many routes of transport from Papua New Guinea are down at the moment). 

I use an electronic formatHow will you handle maintenance complaints Will you self manage or hire a property managerRead Brandon Turners book on Rental Property Investing and Managing Rental Properties Listen to PodcastGood Luck.

I typically file my taxes using turbotax and file electronically because I've only done one flip up to this point so there isn't a lot to preparing my taxes.  

The gate is not manned nor does it have a keypad for entry, just electronic openers I believe. 

Nevertheless, orders increased 4% for electrical equipment including appliances, 2% for fabricated-metal parts, 2% for machinery and 2% for computers and electronics.

@Paul Sandhu every VRB I have utilized has also had electronic locks, with such all could be accomplished over the phone of via use of the code they received via e-mail for check in which remains active during their use time and resets to a different code for next tenancy. 

Another vote for YourPorter.I even created an offplatform website through their interface, though I am trying to figure out how to best integrate electronic lease agreement signature.The only thing I am trying to figure out is their Cleaning module - how best to send automated communications to my cleaner.

I often find that when it needs some sort of electronic repair that the part has to be ordered.