a landlord with a property at say 1200 euro a month but market rate is 2000 euro a month will be tied into 2% annual increases at the most for the next few years at a minimum, possibly indefinitely. By leaving a property empty for 2 years, they forego €28,800 in rental income. It would take them three years approximately to make up the difference in income. Therefore, over 5 years, they would be in a far better position in terms of rental income as well as not having their property devalued potentially if they were to sell it, as a result of having rent far lower than market rent.