How long do tenant profiles stay in the system?: Tenant profiles, by default, are purged every 45 days. The thinking behind this is 1) If they are thinking of moving at a time beyond 45 days there is an excellent chance that currently available units will or should be gone by then. If it takes longer than 45 days for a tenant to pick an available unit, then they really are looky-loos and aren't serious about their housing needs.