AIW for wanting to cut off any relationship with my SIL after she attempted to sue my wife?

Inheritance can bring out the worst in families. When a handwritten note listing heirloom jewelry turned into a court battle, what should have been a moment of grief over a mother’s passing became a legal circus. Our OP and his wife watched in disbelief as the wife’s own sister sued—then sued again—claiming stolen pieces, even after judges dismissed her claims.

With every courthouse trip, trust eroded. When the sister sent their father to plead her case rather than apologize herself, our OP wondered: is it ever wrong to cut ties with someone who weaponized grief for profit?

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‘AIW for wanting to cut off any relationship with my SIL after she attempted to sue my wife?’

my wife's mother died suddenly. she left behind two daughters and a second husband (not their biological father) as part of her will, she had an old small handwritten note of jewelry and how to split it between her two daughters they were only able to find half of what was listed, but her current husband had confirmed that over the years jewelry had been exchanged, sold, etc

what was left was split and my wife came back home devastated by her death, not concerned about the

the judge threw it out. my SIL tried again. again it was dropped and the judge told her to stop wasting the courts time. we have had zero communication/contact with her since all this now my wife's biological father has inserted himself saying it's wrong for use to be treating my SIL in this way. that it was an upsetting time and mistakes were made.

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my biggest problem is that my SIL has made zero attempt at making amends and sent her father instead on her behalf.. my wife doesn't know what to do. she is now in therapy working out her feelings, etc. but, idk if ill ever be able to forgive my SIL for what she has done. i cant see myself ever having a relationship with her again. am i wrong?

Trust is the bedrock of healthy family bonds, and once broken, it can be nearly impossible to rebuild. As relationship researcher Dr. John Gottman observes, “Trusting someone means knowing they have your best interests at heart; betrayal, especially in times of vulnerability, tears that fabric apart.” Repeatedly dragging a grieving sister into court signals a prioritization of material gain over familial love—a rupture not easily mended by words alone.

Inheritance disputes often tap into deeper issues of power and unresolved grief. Family therapist Esther Perel notes, “When people fight over possessions after a loss, they’re often seeking control in a world that suddenly feels uncontrollable.” In this case, the sister’s lawsuits may reflect her own inability to process her mother’s death, but the collateral damage fell on relationships that once mattered most.

Setting firm boundaries is essential when forgiveness hinges on accountability. Psychologist Dr. Harriet Lerner explains, “Saying ‘no’ to toxic patterns isn’t cruelty—it’s self‑respect.” By refusing further contact until a genuine apology and reparations occur, our OP and his wife protect their emotional well‑being and signal that reconciliation requires honest effort, not just parental pressure.

Sometimes, professional mediation can pave a path forward—if all parties participate in good faith. A neutral family mediator can help clarify misunderstandings, establish a plan for equitable resolution, and guide the sister toward acknowledging her actions. Yet without genuine remorse, mediation risks becoming another arena for half‑hearted compromise rather than true healing.

These are the responses from Reddit users:

Redditors overwhelmingly supported going no‑contact, calling the sister’s actions “despicable” and “a bridge burned.” Many urged the couple to stand firm: without a direct apology and a promise to abandon legal harassment, there’s nothing to rebuild.

A smaller contingent noted that if the sister ever shows real contrition—through an apology letter or mediated session—reconciliation could be revisited, but only on the couple’s terms.

keikoarwen − No one would fault your wife for going NC with her sister. She tried multiple times and now has the audacity to send their dad to do her bidding. Definitely should stay away from her

Ohmigoshness − Your not wrong but sil seems bad. You can tell people's characters and intentions the moment a parent dies. In my fam everyone dies by suicide or natural death and everyone is literally vultures waiting for that last breath so they can snatch up anything and everything that person had.

I seen bad families I came from one, your sil acts like that. To me I wouldn't want to keep that type of relationship she technically knew too if she sues her it's like burning a bridge.

SirGkar − Not wrong. Send FIL back with your own message. He’s divorced, so he will understand. “Our relationship with SIL died in the courtroom. It’s on her to figure out how to resurrect it. Sending you was a huge mistake, because now we know she’s not remorseful.

I’m not going to be manipulated into forgetting what she did to her only sister, *twice*, without even a hint of guilt or apology. You should be ashamed of yourself for getting in the middle of this and pointing at the wrong side.” I mean, not verbatim, but you get the idea.

SlabBeefpunch − Tell FIL he's having this conversation with the wrong daughter. Your wife has done nothing wrong and without a real apology, and amends being made, there's really no relationship to salvage

south3y − You never really know a person until you share an inheritance with them.

Bonnm42 − You’re not wrong. It was a difficult time, made more difficult by SIL. It is up to you and your wife, if and when, you guys are ready to have SIL in your life again. It also does not bode well that she had to have their Mother’s husband initiate the reconciliation. If she can’t take accountability and apologize for what she did, you all have nothing to talk about.

SushiGuacDNA − Not wrong. You and your wife aren't wrong. I would let your wife lead on this one. After the stunt that your wife's sister pulled, it's perfectly reasonable for your wife to cut her off forever. **However!** It's also perfectly reasonable if your wife would like to reestablish ties with her sister at some point.

Family bonds can be very strong. Honestly, it's your wife's sister, so my advice would be to follow your wife's lead. Support her if she wants no contact forever. Support her if she wants to try to connect again with her sister.

If she takes that latter course she will especially need your love and strength because it could be a painful path. But let her choose it if that's what she wants down the road.

iluvcats17 − Unless she calls and apologizes herself I would keep living your life as you are.

Trippedwire48 − You're not wrong. I'm sorry for your loss. SIL needs to make an effort to make amends if she wants and their father has to stay out of it. It's greedy that her thought process was to sue her own sister for something that never belonged to either of them after their mother's death.

She expected some type of windfall inheritance it sounds like when there wasn't any. Keep NC until she reaches out. Even after, depending on what she has to say for herself.

DrKittyLovah − You are not wrong. Your SIL had multiple chances to get herself right and yet she chose to push the issue over and over. She was even told by a reputable third party (the judge) that she was out of line and yet she still continued to accuse your wife of wrongdoing and attempts to collect jewelry that she was told was sold, broken, whatever over the years.

She cannot be trusted so what could there be of a relationship, when trust is the foundation? Other family members (father) typically just want the discomfort to pass and peace resumed so they will do & say what they can to smooth things over without actually considering the merits. Are you sure SIL sent him, or does he just want to be able to have both kids over for dinner at the same time?

When does protecting your family cross into unforgiving stubbornness? Have you ever cut off a relative who sued you over inheritance or prized possessions? How did you navigate forgiveness, boundaries, and the pressure to reconcile? Share your experiences and advice below—your insights might guide others facing similar familial fault lines.

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