Legal filings don't require special jargon. Most lawyers just use jargon because they know exactly what the jargon means and how a judge will interpret it. In a lot of cases, they use the jargon simply because its what they learned in law school from professors who learned it from professors who learned it from professors who learned it when the jargon was still required.
A layperson can file their own lawsuit, and as long as they satisfy the requirements of the law outlining the necessary elements of the lawsuit, they don't need any jargon or special language. (Formatting is a court-imposed requirement; that does not come from the lawyers.)
Access to the courts is limited by imposing filing fees. An LLM like this won't change that; if anything the most likely response is to increase filing fees.
A layperson can file their own lawsuit, and as long as they satisfy the requirements of the law outlining the necessary elements of the lawsuit, they don't need any jargon or special language. (Formatting is a court-imposed requirement; that does not come from the lawyers.)
Access to the courts is limited by imposing filing fees. An LLM like this won't change that; if anything the most likely response is to increase filing fees.