How are joint income tax returns addressed in child support cases?

Unfortunately, you have not provided enough facts to answer your question. If this is your child support obligation to your children from prior...

Me and my wife have filed a join income tax return. I have sponsored my mother for immigration and am using 864EZ form.

Your AGI on your 1040 is what you have to report.

Is this legal to forge my signatures on a Tax Return?

At this point, I think you would have to appeal, if you didn't miss a deadline for that. Also, the forgery part can be reported to the IRS.

No. Once you paid, the State will do necessary filings.

I didn't get the money from my taxes yet why ? Ang ideas ?

This is the IRS tool to track your refund: http://www.irs.gov/Refunds.

Am I entitled to a portion of my wifes tax return

At this point it is between you and your wife. If she and you filed with the "married filing separately" filing status, then only one could claim...

If someone owes me money ,and they agree to sign written contract saying that they must hand overtheir car if debt is no. pated

Probably yes. If you created what is call a security interest in the car, you can peacefully take possession, sell, and recover the unpaid portion...

How would I go about getting my money back legally? Any other advise on what I should do on the matter?

Unfortunately, you locked yourself into this sub-lease without proper protection. By that I mean that a proper way to handle payments would be put...

You pay taxes based on the principle place of business location and also based on activities that your LLC conducts in a state. LLC taxation has...

My question is in the "additional details" box.

Shareholders are almost never liable for claims against the business. However, if you were personally involved in any unlawful or criminal activity...