If I provided all of the information digitally, maybe I would keep a digital copy for ~6 months after the sale if the new buyer reached out for any reason.

@Deirdre Lizio thanks for the tips on foreign taxation, however that should not be an issue for us as we are not actually planning to stay in one place but rather be digital nomads.

Digitize physical receipts for easy storage.

The free option is good enough for tracking basic payments and expenses, but paid service makes digital leases and advertising very simple. 

Note I have 8 digits of local RE and my net worth increases over 7 digits per year for at least the last handful of years.  

And I find it funny persons are all too happy to take a 6/7 figure action on "A" persons declaration of comp/what the #'s are but no-way do they trust "A" contractors 3,4,5 digit project numbers, no-way no-how no no no, gotta get 3+ bids right.....

A lot of great options out there for self-managing if you decide to go that route; aside from providing the basics (listing, tenant screening, digital lease creation, rent collection, and maintenance tracking) some services also offer your tenants additional capabilities which makes it an easier sell on your end when getting them to transition over (ie. their ability to report on-time rent payments to the credit bureaus).

When China manipulates there currency, when Canada manipulates an industry, when a nation invades a sovereign nation......

Not sure your guest access, but I have keypad entry, I use the last 4 digits of the phone number used when booking.

Dig it!