I need help for me and my kids pls help me

as per me its marriage. story started in Manali I got married there in 2000 and my husband he was my senior. After few mnths got shifted to Delhi that is my native place. I was expecting got deliver a baby boy in 2001 after few mnths my husband character started coming in front of me like he use to flirting around a lot with girls had many times fight, still life was going on most of time he was without job and I use to take help from my parents for survival. In2004 I gave birth to baby girl. in 2005 my husband went to Canada to work with his sister but as she was I'll treating him he came back after a year than layer again he said I just have to lie that I left u all and I will get another chance to go to Canada again in 2007 he went back since than neither he has come back nor he is sending any money for us. I am dependent on my parents and now lawyers i met they are saying fees will be around 1lac but still if he doesn't appear or no one appear in court case is helpless. I am under debths and now I want justice for my children and myself. for atleast 5 yrs he kept on making us fool that he is calling children to Canada we had been for DNA for interview but lastly nothing happened and now I am 41 with no earning and want real lawyer who can give right suggestion and can help me to get justice