I am from Spain, in some months I will start working in Munich for an international organisation, and I want my girlfriend from Colombia to come with me. I have been told by friends living there that it is possible to marry in the Spanish consulate, so I am planning to send her an invitation letter as in Spain so that she can come three month and during that time we arrange everything.
But I am wondering if the Verpflichtungserklärung would be enough or if I should send her something else too, and what should we do, after getting married, with the german authorities in order to get a visa in Germany for her. I believe that, as other international organisations, my new work will most likely help us providing some kind of special visa for her, but I would like to know what to do in case that is not possible.