rubberbands:
Life is very complicated and truthfully it’s not the place of a child to mix right into a heavyweight machlokes. The best you can do is daven that if there is NO BASIS for the machlokes, someone grows up and apologizes.
I don’t know your situation or any parties involved. Reading your comments, I caution you to be aware that your actions may in fact be strengthening the resolve of the machlokes:
-Nobody wants a niece (relative, etc.) stalking them. Sending letters or presents that are not wanted is considered stalking. This type of behavior besides for being downright creepy is also ILLEGAL.
-Airing your dirty laundry and feelings about your uncle’s ‘immaturity’ is a good way for him to strengthen his resolve. OR…maybe he’ll start revealing his ‘secrets’ he held in about your father for years. He might be acting anti-social and accepting the embarrassment, just to keep the family secrets hidden. He might literally be the family sacrificial lamb. This post of yours might give him the impetus to release the goods. It won’t be pretty.
As I tell my low level employees who criticize executive decisions, “Just do your job”. For YOU to hire a mediator, get rabbonim involved, write letters and follow up with calls to see if they arrived, etc. etc. are OUT OF BOUNDS. You are stepping into dangerous territory YOU have no business going into. Do your job of being a good daughter and keep out of other people’s personal secrets.
BTW:—Maybe find out whose brain cramp it was for two siblings who bring pre-existing feelings of animosity to move a couple of blocks away from each other. This is a no-brainer!