From the information you provide, I would think you're probably as expert as any lawyer in determining the intent of a DSS caseworker in dealing with child custody, reconciliation and adoption. <smile>
I could conjure up all sorts of theories about why you have not been contacted concerning the court hearing. However, assuming that your parenting of the other children in your custody has been unremarkable (i.e., children are well socialized and thriving, etc.), then the only reason that seems credible is inadvertence. County workers are imperfect, so maybe this really is simply an oversight.
But, as you have knowledge of the hearing, there's no reason why you or your attorney can't appear and request an opportunity to be considered as the child's custodian. If you don't show up, then the court may think you're not interested. And, if you do, then the court will almost certainly take your position into consideration.
I really wish that I had some black letter law that I could point to that would show you why you haven't been considered, or why DSS is ignoring you. But, there isn't anything -- and I'm pretty sure you already know that the recommendations of DSS is almost always accepted by the court in making a disposition re child custody or foster care. Maybe if you have your lawyer contact DSS, and express your continuing desire to parent the child along with his/her siblings, that will provide a little "push" to the caseworker in preparing recommendations for the court.
Regardless, I would appear at the hearing so that the court knows you are extremely concerned and interested in being awarded custody of the child.
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