What do you need to immigrate to Spain? Is there a good chance of success in Spanish immigration?

The conditions for applying for a residence permit for investment in Spain are as follows:

1. The applicant must be at least 18 years old and have no criminal record;

2. Buying a property worth 500,000 euros or more in Spain;

3. Have social public insurance or private medical insurance authorized by Spain to operate insurance institutions;

I have the financial conditions to guarantee the expenses of myself and my family during my stay in Spain.