Inactive?
You have 2 choices.
If you want to stay
Confront them on the reasons why you are being treated this way, ask if they feel you are responsible for you adult daughters falling away? Tell them you want forgiveness.
If they refuse, ignore the Elders and go to the KH. Ignore their requests and just sit through the meetings in the second row. Keep repeating the to them that you serve Jehovah. Keep going until they call the police (if they actually do this, next you call the local newspapers). Check back here ask for scans for you print and take to the meetings.
If they really want you gone ask for the letter of introduction to be handed to you personally, if they refuse, explain under no uncertain terms that if a hateful slanderous letter is sent to your next KH, you will move back to their KH and attend until your burial.
or
The decision to leave. If this becomes the only sane path consider that many have been forced out before you as results of KH politics. Meditate on the parables in Matthew. Re-read the instructions that Jesus left for his followers. Pray, sob, read JWD for therapy, and begin to piece your spiritual sanity back together. It has been done, many are in the process now, maybe one day I will join them instead "ignoring" the Elders too.
Reminder: By their LOVE you will know them.
God Bless
Y