I'm Single But I'm Not

Dearest Atty,

I have a very difficult situation right now. I'm single in all of my documents including my diploma, transcript, passport. Dahil mahirap lang kami, I cannot afford to get an annulment with my husband which is currently in jail right now. We've been separated for 7 years now and I have live in partner at the moment who want to marry me pero hindi pwede dahil I'm registered as married in NSO. We were married in civil.
So, this is my problem po. Hindiko pa kayang mag pa annul dahil hindi kaya ng budget, plus gusto kong isama dito sa abroad ang anak ko but we have different surname because I didn't change my status when I got married.
Please help me, advice me what can I do?
Thank you.

Well you already know what the advice would be but you can't afford it yet.

Thank you for the response ibonidarna. Do you have any idea if there will be a conflict regarding my son's passport? Well, hindi pa naman kumukuha but I'm planning. Eventhough magkaiba kami ng apelyido?

thank you.