What will happen to the house if the Spanish immigrants who invest in it are unsuccessful?

How could it not be successful? As long as Spanish immigrants buy more than 500,000 euros of real estate, there is no problem and there are no unsuccessful cases. However, the house to be bought must meet the standards. For example, there is no dispute over the property, the investor has not committed a crime or concealed it, and his age is 18 years old. If you meet these requirements, you will succeed.

For whatever reason, if it doesn't work, the house can be sold.