Residence Permit in Turkey
The application process for a residence permit in Turkey is relevant to anyone who wants to stay in the country for more than 90 days at a time. This includes students, employees, foreigners married to Turkish nationals who are yet to gain citizenship, anyone conducting scientific research, and foreign property buyers.
People who want to stay for less than that duration (except for countries with visa agreements) can use a touristic e-visa but cannot remain in Turkey for more than 90 days during a 180 day period.
If a foreigner owns property in Turkey, he/she gets a residence permit which is renewed every year if he/she keeps the ownership.