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Proposal writing handled by a retrieval engine, with a human signing rather than writing. Aimed at legal partners, writing down what only one person knows.
In short: Legal Proposal Builder on Retrieval is a retrieval engine aimed at legal partners, covering proposal writing. It scores 73/100 on AltF Ideas, carried by moat (96) and held back by feasibility (33). Typical pricing is $4.9k–$73k per customer per year, with a first version reachable in six to twelve months for $43k–$121k.
Legal teams lose proposals rebuilt from scratch that are 80% identical. It is the kind of task that is too small to fund and too costly to ignore. The error rate is tolerated because measuring it would cost more than the errors.
Proposal writing handled by a retrieval engine, with a human signing rather than writing. Revenue is data subscription, which suits a buyer who wants the cost to track the value rather than the seat count.
| Total addressable market | $446M |
|---|---|
| Category growth (CAGR) | 14% |
| Annual contract value | $4.9k – $73k |
| Pricing model | Data subscription |
| Time to first revenue | 59 days |
| Startup cost to MVP | $43k – $121k |
| Build effort | 6-12 months |
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 |
|---|---|
| The incumbent suite | Sells a platform; this job is one neglected module inside it |
| A spreadsheet | The real incumbent in most of the market, and it is free |
| An offshore back office | Cheaper per hour, but does not scale down to the tail |
Integrations with the incumbent system of record are undocumented and gatekept.
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