Professional Negligence Legal Notice Draft

I am preparing a claim of professional negligence against a South Australian law firm and the Law Society of South Australia. The lawyers involved are already signalling an “Advocates Immunity” defence, so I need rock–solid research on how that immunity is limited under current Australian case law, together with a precisely drafted legal notice that puts them on formal notice of my claim.

Here is what I require:
• Clear, well-referenced advice outlining the legal avenues still open when Advocates Immunity is raised in South Australia (key High Court and SA authorities, relevant sections of the Civil Liability Act, alternative causes of action, etc.).
• A fully-formatted legal notice addressed to the respondent solicitors and the Law Society, setting out the allegations of incompetence, the breach of duty particulars, loss suffered, and a demand for remedy within a specified timeframe. The notice must comply with South Australian pre-action protocols.

Please cite all authorities you rely on, write in plain English, and supply the final notice both in Word and PDF so I can review and dispatch immediately.