Utilities and big landlords handle overhanging limbs and disputed lines hundreds of times a year. The habits that make that work are mostly free to copy.
An 18-truck HVAC company left its field service platform after nine years. The export ran fine. What it contained, and what it left behind, is the part worth planning for.
The chain that drains an account rarely starts at the account. It starts somewhere unimportant and works inward through things somebody set up years ago.
The difference between records that make a return straightforward and records that cost a weekend is not effort. It is entirely a question of when the effort happens.