Voluntary TPR - how does that work?

In NY voluntary surrender usually happens just prior to TPR or even during TPR when the BPs realize that TPR is going to happen. They can ask for the world as conditions of their surrender, but the adoptive parents have the right to refuse any, or all of the conditions. DSS will typically relieve the BPs of their responsibility of back support owed to the county as a result of the child being in care, but that's about it. Depending on what happens in our case in the next month or so, we may be headed for TPR. I do not see the kids' Mom surrendering voluntarily.