Family Reunion for EU Member


I have question, my brother has Portuguese RP and he is British National.

My Brother has applied for our Family reunification as we are dependent on him. Our lawyer has submitted the documents and he is not able to get the appointment for me and my family.

I just want to check what exactly is the procedure to to RP for dependent family members of Portuguese RP holder starting from Interior ministry file filing to SES appointments.

Is it really hard to get the appointments at SEF for this category,

Appreciate your response.