Did you try to offer that condo to your friends or relatives, so they can use it sometimes, too?
My wife's relatives in the Philippines have the key, and they stay there occasionally to use the resort-style pool and cabanas, and a few friends from the UK or Australia who visited the Philippines stayed there. We could make money through AirBnB or longer-term rentals, and in fact the condo management company facilitates that with concierge, checkin/checkout, cleaning, airport transer services, etc, but the rent we would get (~$300-600 after expenses) isn't enough to justify the extra wear and tear on the condo.
My wife's relatives in the Philippines have the key, and they stay there occasionally to use the resort-style pool and cabanas, and a few friends from the UK or Australia who visited the Philippines stayed there. We could make money through AirBnB or longer-term rentals, and in fact the condo management company facilitates that with concierge, checkin/checkout, cleaning, airport transer services, etc, but the rent we would get (~$300-600 after expenses) isn't enough to justify the extra wear and tear on the condo.