To become a resident of Finland, you must apply for a residence permit. This is granted for three or more months, based on the reason you wish to stay in Finland.
One reason you are allowed to immigrate to Finland is if you have family connections. If you have extended or immediate family living in the country, you can be granted a residence permit.
If you are self-employed or have a job in Finland, you can obtain a residence permit. If you are self-employed, a Finnish resident must apply for the permit for you. If you have a job in Finland, your employer must apply for you.
Those studying abroad in Finland can apply for a residence permit. However, to obtain one, you must be enrolled in a college in a program that will earn you a degree. You cannot merely have intentions of studying in Finland.
Another way you can obtain a residence permit is by having an established intimate relationship. Examples of this include having a spouse or a nonmarried partner. To qualify for an established relationship you must apply at the Finnish Embassy.