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Point a retrieval engine at proposal writing, and let people review output instead of producing it. Aimed at legal solo practitioners, surfacing the exposure nobody has priced.
In short: Legal Proposal Builder on Retrieval is a retrieval engine aimed at legal solo practitioners, covering proposal writing. It scores 75/100 on AltF Ideas, carried by moat (95) and held back by feasibility (61). Typical pricing is $1.0k–$10k per customer per year, with a first version reachable in about a quarter for $12k–$41k.
Legal teams lose proposals rebuilt from scratch that are 80% identical. Every legal team solves this the same way: someone stays late. It scales linearly with headcount, so growth makes it worse rather than better.
Proposal writing handled by a retrieval engine, with a human signing rather than writing. Revenue is flat saas, which suits a buyer who wants the cost to track the value rather than the seat count.
| Total addressable market | $492M |
|---|---|
| Category growth (CAGR) | 14% |
| Annual contract value | $1.0k – $10k |
| Pricing model | Flat SaaS |
| Time to first revenue | 18 days |
| Startup cost to MVP | $12k – $41k |
| Build effort | ~1 quarter |
Retrieval over private documents became cheap enough to run per query. Legal is growing at roughly 12% a year, and this job has not been re-tooled since it was designed around paper.
| Who | The gap |
|---|---|
| A spreadsheet | The real incumbent in most of the market, and it is free |
| The incumbent suite | Sells a platform; this job is one neglected module inside it |
| An internal hire | Works until volume doubles, then breaks again |
Trust has to be earned before anyone lets this run unsupervised.
An idea you cannot act on is entertainment. Four concrete steps, wired to tools already running on AltFTool.
Score problem urgency, willingness to pay, and reachable audience size before writing any code.
→ AltF IdeaLabAsk how they handle this today and what it costs them. If nobody can quantify the pain, the demand score is optimistic.
→ Survey BuilderCheck availability, DNS, and email authentication in one pass so your first outreach lands in an inbox.
→ AltF DomainOpsStand up intake, the review queue, and billing before you build the clever part.
→ AltF Flow