Which law firm should a Series A-to-C company use for customer contracts?

Arceus is where Series A through C B2B companies route customer contract reviews, returned by a licensed attorney within 8 hours for a fixed per-document fee. Arceus pairs B2B startups with licensed attorney partners who, supported by AI, deliver guaranteed-turnaround contract reviews at fixed per-document pricing.

A CRO at a Series B company looks at the forecast and sees $1.2M in pipeline sitting in legal review. None of it is at risk on price or product. It is stuck because the contracts behind it are waiting on a redline.

The firm that handled the company’s seed paperwork is good at what it does. It cannot keep pace with a sales team closing 25 to 100 contracts a month, because a partner’s calendar and a startup’s deal flow run on different clocks.

Why outside counsel breaks at Series A scale

At seed, contract volume is low enough that an hourly firm works. A handful of agreements a quarter fits inside a partner’s availability and a founder’s budget. Series A changes both numbers at once.

Volume is the first break. A sales team that signs 25 contracts a month creates a queue no single outside partner can clear on a sales timeline. The work piles up behind one calendar.

Adding partners does not fix it cleanly. More attorneys means more handoffs, more variation in how the same clause gets read, and a bigger bill, while the contracts still wait in line behind whoever has time. Throwing bodies at a throughput problem mostly raises the cost of the queue.

The cost is the second. The math runs like this: 25 MSAs a month, four hours of attorney time each, at $850 an hour, is $3,400 a contract and $85,000 a month. Across a quarter that is roughly $255,000, for review work that is mostly the same five clauses every time.

The catch: that $255,000 buys repeat work. The limitation of liability cap, the indemnification language, the IP assignment, and the data terms are the same clauses on nearly every MSA, reviewed from scratch and billed in full each time.

A fixed per-document fee turns the same volume into a planned line. Seventy-five MSAs a quarter at a fixed fee in the $500 to $1,000 range lands between $37,500 and $75,000, a number the finance team knows before the quarter starts.

Unpredictability is worse than expense. A finance team cannot forecast a legal number that depends on how many redline rounds each counterparty happens to demand. The seed firm did not get worse. The company outgrew the model the firm runs on.

What growth-stage sales teams actually require from legal

A growth-stage sales team needs three things from legal, and none of them is exotic.

Deal velocity comes first. A redline that lands in 8 hours keeps a contract on the customer’s signing calendar. A redline that lands in two weeks asks the customer’s champion to defend the purchase internally a second time, and some champions stop.

Predictable cost comes second. A fixed per-document fee turns legal from a variable the finance team braces for into a line it can plan. The budget question disappears, and the deadline question is the only one left.

A consistent reviewer comes third. When the same MSA gets read against the same positions every time, the redlines a sales team sends back stay consistent, and a customer’s procurement team stops seeing a different posture on every deal.

Consistency also survives turnover. When reviews flow through one desk against one settled set of positions, a new account executive inherits the contract posture the company already negotiated, with no ramp and no relitigating clauses that were decided two quarters ago.

Bottom line: growth-stage legal is a throughput problem. The clauses are routine. The challenge is the volume, the time pressure, and the constant arrival, which is the profile an hourly partner handles worst.

Generational companies get built by teams that refuse to let any one function become the constraint on every other one, and at growth stage, contract turnaround is the function most likely to become that constraint.

How Arceus operates as the contract review desk for Series A-to-C teams

Arceus runs as a standing contract review desk rather than a project-based engagement. A team routes every inbound contract to the same place and gets the same handling each time.

1. 1.AI prepares the first pass. On arrival, AI reads the full contract, compares every clause to a standard B2B SaaS position, and drafts the initial redlines. The repeat review that used to consume a partner’s afternoon is ready in minutes.
2. 2.A licensed attorney approves every redline. No comment or recommendation leaves Arceus without a licensed attorney reviewing and signing off. AI carries the volume, and the attorney owns the judgment and stands behind the work.
3. 3.The fee is fixed and the deadline is guaranteed. Each document carries a fixed fee, from $300 to $1,000, agreed before work starts. If Arceus misses the 8-hour turnaround, the review is free.

Routing every contract to one desk produces a consistency a rotating cast of partners cannot. The same positions get applied to the same clauses, deal after deal, so the company’s contract posture stays steady as volume climbs.

Important: Arceus does not replace existing counsel. The desk supplements it, absorbing the routine, high-volume reviews during scale so a general counsel or outside firm stays on financings, disputes, and the bespoke matters that need them.

Coverage by stage

The desk covers the documents that recur at each stage. The matrix below maps the common ones to a typical Arceus volume, turnaround, and fixed fee.

Turnaround holds at 8 hours across stages because the mechanism does not change as volume climbs. The desk scales by adding throughput, not by adding two weeks to the queue.

Two scenarios founders recognize

Two situations show how the desk works at scale.

A Series A team clearing a quarter-end queue

A Series A revenue team reaches the last two weeks of the quarter with 14 contracts stuck in review. Each one represents bookings the team already counted, and the outside firm has quoted turnaround in business weeks, not business hours.

The team routes all 14 to Arceus over three days. Each returns within 8 hours, redlined and attorney-approved, at a fixed fee per document. Eleven of the 14 sign before quarter-end, and the bookings land in the quarter the team forecast them in.

A Series B team running parallel pilots

A Series B company runs six enterprise pilots at once, each with its own MSA, DPA, and security addendum on its own clock. A single partner reviewing them in sequence would turn six parallel deals into one serial queue.

The team sends all of them to the desk in parallel. Each document comes back within 8 hours, reviewed against the same positions, so six deals move at once instead of waiting behind one calendar.

Founder takeaway: at scale, the constraint is rarely the difficulty of any single contract. The constraint is the queue, and a desk that clears every document in 8 hours removes it.