those steps are what a RAG LLM agent setup excels at.
If tech companies invested 10% of what they have in AI assisted coding tools into AI assisted legal tools, they would be able to do those steps easily.
You can have as much RAG as you like, but if you're missing the data itself (the legal judgments), it's useless. The fundamental problem here isn't technical, it's that a very small number of corporations have complete control over the source material.