"Can I sue the lawyer" sounds like one question, but it is several. Whether a legal malpractice or related claim survives a demurrer in California turns on a handful of specific, recurring distinctions: who the lawyer represented, what kind of duty that created, and whether the harm claimed is the kind courts will let you litigate at all. Five real rulings, five different answers.
1. Can you sue your landlord's own lawyer?
Only if they were working for you too. In one Los Angeles case, a tenant sued her landlord's law firm directly for malpractice, claiming she'd been confused enough to think the firm represented her as well. The court held a lawyer's duty runs to the client, or to a genuine intended beneficiary, like a named beneficiary under a will the lawyer drafted. An opposing party doesn't qualify, no matter how confused. Demurrer sustained.
2. A judge assigns your kid a lawyer in your custody case. If you don't like their call, can you sue them?
No, as to decisions made in that role. Court-appointed minors' counsel in custody disputes are immune from suit over decisions made in that specific appointed role, even when a parent believes the decision devastated their relationship with their child. One California ruling sustained a demurrer on this ground without leave to amend. The immunity is quasi-judicial, the same doctrine that shields judges themselves. A separate claim for ordinary misconduct outside that role is a different question.
3. You pled no contest in your criminal case. Your lawyer was terrible. Can you sue?
Only if you first prove actual innocence and obtain postconviction relief, and this rule held even on bad facts. In one case, an attorney allegedly referred his own client to an undisclosed relative working as a paid "life coach." The malpractice claim still died on the actual-innocence bar. What's notable: the breach-of-fiduciary-duty and IIED claims pled alongside it survived on the same facts. The categorical rule is specific to the malpractice theory itself, not the underlying conduct.
4. Your lawyer settles your case without asking you. You find out after the fact. Can you sue?
Yes. Settlement authority belongs to the client, not the attorney. A lawyer who settles without authorization and then conceals it can be sued for both malpractice and breach of fiduciary duty. In Joslin v. Edwards, No. 24-01440293 (Orange County Superior Court, tentative 2026-06-24), the court found that "the FAC alleges that Defendants entered into and concealed an unauthorized settlement-related agreement without Plaintiff's knowledge, consent, or authorization, despite his express instructions not to settle the case." The demurrer was overruled on both causes of action. Lead with the concealment, not the abstract "authority to settle" argument; that's the version of this fact pattern that moves a court.
5. Your insurance company assigned you a lawyer. That lawyer messes up your defense. Who's on the hook?
The lawyer is. Insurer-appointed defense counsel owes the same malpractice duties as any other attorney. In Yang v. Gates, Gonter, Guy, Proudfoot & Muench, LLP, No. 26STCV05049 (Los Angeles County Superior Court, hearing 2026-07-30), the ruling describes "State Farm hiring G3PM to represent Plaintiff." Winning the claim is still not automatic. Two rulings split on damages: Joslin (from pattern 4, where the lawyer was sued alongside the title insurer) and Yang. In one, the court let the damages allegations stand at the pleading stage; in the other, it held that 'possible future exposure' wasn't a present injury. The Yang court wrote: "Such allegations of possible future exposure are speculative and are insufficient, as pleaded, to establish present damages proximately caused by G3PM's alleged misconduct." That demurrer was sustained with leave to amend, so the claim failed as pleaded, not for good. Whether insurance is paying the lawyer's fee is irrelevant to duty. Whether your injury is real yet is what decides the motion.
The common thread
None of these turn on how good or bad the lawyering was. Each one turns on a threshold question that gets asked before anyone evaluates the quality of the representation: whose lawyer was this, what specific duty did that create, and is the harm you're claiming the kind a court will let you litigate right now. Get the threshold question right, and the merits fight is still ahead of you. Get it wrong, and it never starts.
Methodology note: five distinct California civil rulings (Joslin v. Edwards appears in patterns 4 and 5), each read in full text, coding the specific relationship and duty basis behind a legal-malpractice-adjacent claim. Qualitative pattern examples, not a statistical claim about outcomes generally: small-N, citation-verified illustrations of recurring distinctions courts draw. This is internal LawSnap corpus analysis, not a citation to any single case as controlling authority in your matter. Nothing here is legal advice.