Build a law firm case management app with these features: 1) Matters as the primary record, with client, matter type, opposing parties, responsible attorney, status and a matter number. 2) Contacts linked to matters by role, including client, opposing party, opposing counsel and adjuster. 3) Intake pipeline capturing the inquiry, running a conflicts screening search across all existing clients and parties, and converting an accepted inquiry into a matter. 4) Document library per matter with template merge fields for client name, matter number, court and dates, plus versioning and download. 5) Deadline list per matter with a calendar view, reminder offsets and a confirmation step where a human approves each computed date. 6) Time capture with a running timer and manual entries carrying task codes and billable flags. 7) Invoicing that pulls unbilled time into an invoice with hourly, flat fee and expense lines, then records payments against it. 8) Dashboard showing open matters by stage, upcoming deadlines, unbilled value and collections. 9) Per matter access lists so staff see only matters they are assigned to, with an audit log of document views. 10) Client portal for secure document sharing and messages, without exposing internal notes.