True Immigration Lawyers would give you a "Free Consultation". If they don't they are after your money...
Now, why wasting your money on them?
Call the School of Law at any University and ask them for free advise on your problem. If they cannot advise you ask them to refer you to organizations volunteering free advise.
Also, find you a friend or a person that has gone through the Immigration process and ask them also.
Lawyers will take your money to the very bottom of your piggy bank... But, if you insist in getting one, check out the Yellow Pages on Line or on the actual Phone Book.
A good source also: Call your local Law Organization (where all lawyers certified at) and ask for a "good" referral.
Much luck to you!
Child support is based on your income...does not matter how much she makes. Honestly, depending on which state you live in the rate for child support is ridiculous. I live in Illinois and in this state the statute for CS is 20% of your net income for one child and 28% for two children. So after you pay taxes and pay for your kids health insurance and for half of every other damn thing, you still have to pay 28% of your NET income!! My husband makes about 60K per year and we pay $1100 per month for two children. It is unfortunate, but nonetheless it is the law. Perhaps the guys who thought about these laws did not think that Mom getting a decent job to help support their kids was an option. Totally "can do" since Dad would have to pay for half of day care, right? Good luck and keep the faith.