Step Children and child support

[imconcerned]

My spouse had a child before we were married. She to the best of my knowledge never took the child's parent to court for child support and had minimal contact with that parent and filed for sole custody (gave misleading information stating they did not know where the other parent was).

We married and now that we are separated they say they want to "crush" me with child support. My ex and step-child are definitely in touch and the child goes there once a month or so. Would I have to pay child support if the biological parent is known? (particularly since the wherabouts were lied about) And if successfully ordered to pay child support could I then sue the biological parent for support?

Also if I am forced to pay child support could I then request/insist that the step-child remain with me part of the time?
Thank-you

[PaulSlan]

Any person who has demonstrated an intention to treat a child as part of his or her family may be liable for child support. Most step-parents fall into that category. However, this does not relieve the biological parent of his or her child support obligations and the biological parent can be added as a party to any proceeding wherein child support is being claimed.
Payment of child support is completely irrelevant to and access/visitation issues. Those issues are determined based upon the child's best interests.