German immigration law requires visa from citizens of certain countries to enter Germany or at least to stay here longer. Visa are issued by embassies or consulates. Short-term stays up to 90 days are  governed by the rules of the Schengen Akquis, whereas longer stays require so called national visa. I help with both kinds.

Citizens of certain countries who do not require national visa (e.g. US citizens) would still need a residence permit, if they want to stay longer than their visa free period. The grounds for residence permits are for example studies, work or family reunification. I advise clients in respect of the requirements and the procedure.