I am not sure the way Amsterdam law sees it but in a lot of countries if shes paying some of the mortgage and she lives there for a certain length of time she becomes part owner of said condo. Best to get legal advice as if you break up you may be forced to sell and split part of the sale.

Hey if an old guy like me can figure it out its not hard .

Recent recruit from Reddit. Finally made the jump. Love the apps like Boost, Thunder and Voyager.