Nobody looks at a property that is working
A tenant who pays on time and never calls is a gift, and it also means nobody has been inside for years. Systems age, small problems become large ones quietly, and the first inspection in a decade is frequently a surprise for both parties.
The rent and the loss of rent figure drift apart
Rent held low for a long tenant is a reasonable choice. It also means the loss of rent cover reflects that lower figure, and a dwelling limit set years ago reflects construction costs that have moved. Both drift in the same direction, which is downward against reality.
An older tenant may need different things
A long tenancy frequently means an aging tenant, and grab rails, lighting and step repairs are both decent and protective. A fall at a rental is a liability claim, and the modifications that prevent it are inexpensive.