UPDATE 3:40 PM EST: Jim's lawyer is claiming this new lawsuit is ALSO a sham!
Marty Singer is now arguing that Cathriona had a rocky relationship with her mom, and Brigid is just trying to make money off her tragic suicide.
The attorney alleges Miz White received a crushing message from her momma only days before killing herself, and actually cut ties with her parent.
Marty also insists that Mr. Carrey's ex even left Brigid's home as a teenager, because she was treated so terribly.
The lawsuits just keep coming for Jim Carrey.
The actor is already facing a wrongful death lawsuit regarding ex Cathriona White's suicide — filed by her estranged husband, Mark Burton — claiming he provided the drugs she used to take her own life, and gave her STDs.
And now, Cathriona's mom, Brigid Sweetman, is on the attack.
The momma of the late Ireland native has filed her own legal complaint against the Bruce Almighty star, arguing the 54-year-old gave her daughter three sexually transmitted diseases AND was emotionally abusive.
Related: Jim's Lawyer Fires Back At STD Claims
According to court docs, Brigid claims the Canada native would call Cathriona a "whore," and threaten to keep her quiet about their issues.
But it's interesting to note that, while Mark's suit says Jim gave his ex two types of herpes and Gonorrhea, Miz Sweetman says she contracted two types of herpes and chlamydia.
She also alleges Mr. Carrey initially denied giving Miz White any STDs, but broke up with her when she wouldn't accept his dismissive response.
Related: Photos Suggest Cathriona's 'Green Card Marriage' Was A Sham
Brigid claims Jim said to Cathriona: