The underlying principle is easy enough: a country grants the right to live there to non-citizens who commit a qualifying amount in local real estate. The qualifying amount differs greatly between countries, and the authorities adjust it regularly.
An important distinction separates residence and citizenship. Residency allows you to live in the country, typically subject to renewal, while full nationality usually demands far more time and additional conditions. An agent's promise of citizenship simply for an apartment purchase is reason for houses for sale broward caution.
Past the headline threshold, programmes carry extra obligations. Frequent requirements involve proof of no criminal record, medical insurance, evidence of sufficient means and a required physical presence in the country per year. Overlooking a single condition can jeopardise the residency while you still own the home.
Fiscal residency is a separate question entirely. Having residency does not by itself make you a tax resident, though crossing the day-count threshold often does. A number of states use a threshold based on days spent locally, and the effects touch foreign income.
The practical advice remains straightforward: choose the buy property in kargicak first, and treat the permit as a bonus. These routes close with limited notice, and an apartment bought only for paperwork proves a poor asset once the rules change.