Child Custody & Power of Attorney?

Child Custody & Power of Attorney?
Dept of Social Svcs has custody of my best friends children and has for about 2 years. I have an old power of attorney (4 years ago dated & notorized) from her that gives me right to see after her children. Is the power of attorney still effective? Can I go to DSS and demand that they give me her kids? They are ready to terminate her parental rights and I want to adopt those children. Where do I stand with my paper?

contesting a will.

contesting a will.
MY sons father recently passed away. He had a large inheritance that was lef tin a trust as well as a living will. He has two children one with me the oldest 9yrs and one with another women 7yrs old. NEither of us were married. If he left one of the mother NEXT OF KIN and did not include the children can it be contested.

Power of Attorney A has given B General Durable Power of Attorney.

Power of Attorney
A has given B General Durable Power of Attorney. From a stroke A could not physically sign due to the effects of the stroke. The Power Of Attorney has been used by B after that incident. Now A (being of sound mind all the time) wants to change the Power of Attorney to include other signee’s in case B is not capable in the future.
Is this possible. Somebody said one cannot change it since B has used it to sign documents for A.
Also A has a living will. Does B have the power to make decicions contrary to the living will?