I need help finding an Attorney that can assist my father and I in getting help for my Grandparents. Can you recommend anyone to me?

My Father was given Power of Attorney by my grandparents. After my grandfathers stroke, my Uncle had my Grandpa change his Power of Attorney. Now my father and I fear for my grandparents well being. There are several issues that need to be addressed and we are willing to do whatever it takes to get my grandparents what they deserve. We need someone who is willing to fight for my grandparents. One of our concerns is that my Uncle is hording my grandparents money instead of giving them the proper care that they deserve. We need an attorney who maybe able to get a third party to take over the estate and make sure my grandparents are getting treated right and not getting everything stolen from them. Also, my Uncle has been trying to isolate my grandparents from everyone. He and his family have made if very difficult to anyone to go see my grandparents. This too is very concerning. Both of my grandparents have dementia and a very hard time understanding.