I am about to acquire a D7 visa. I would like to discover more within EU borders. For this case, if I rent a house in Portugal and visit several places in EU - as there are not any borders with EU, does this days count as days in Portugal? I know that, I have to stay at least 4 months at first year, then 6 months for the next ones, but what happen if I also have another house in Netherlands, Amsterdam and continue to rent my home at Portugal while living at Amsterdam? How do they measure being inside of borders? Do they look into flight tickets? If so, what happens if I travel by my car?
Many thanks for sharing your valuable experiences,
Caner Selim