Consistency is what makes a slow adopter expensive twice.

A rental agency that buys a property management system and keeps half its records in the old spreadsheet pays for both, and consistency is what decides whether that double cost appears. The value of a system is that there is one place to look. Lease start dates, deposit amounts, inspection reports and the account each deposit is held in all belong there. Once some agents use the system and others stay with the familiar spreadsheet, nobody trusts either source.

From then on every question about a tenant means checking twice, and every lease renewal means reconciling two versions of the same facts. The worst moment comes at the end of a lease. A tenant disputes a deduction from the deposit, the incoming inspection report is in the system, and the outgoing report with its photographs is on the phone of an agent who has since resigned. A file that should take a minute to open takes a day to rebuild, and the dispute is argued from whatever could be found.

The cost of slow adoption is paid twice. Once in the years spent doing things by hand, and again at the switch, when old records have to be cleaned and an office that never agreed on one way of working has to learn one. An agency that adopts late but all together pays only the first.