Schedule routine checks and keep trusted local contacts. Budget for replacement as well as repairs. Record reported problems and close the loop with guests. Do not delay a safety issue for the sake of keeping a booking.
One practical next step.
Keep a maintenance log with dates, actions and receipts.
This information reflects my experience and my understanding of published guidance. It is provided for general information only and should not be treated as legal, tax, planning or financial advice. Regulations can change, so always check the current official guidance.