A New Kind of Accounting Firm · In partnership with Deliberate Achievement
Forty years of accounting expertise combined with AI-powered sales automation and strategic business coaching — all under one roof. Built for owner-operated businesses ready to grow.
We're current with our invoicing. Things are going out the door faster, and we're doing it with one less employee. Cash flow is the best it's been in 10 years."
Ross Devereaux, CPA & Tax Advisor · 40 Years in Practice

Big-4 alumni leadership
$200K → $380K growth playbook
Month-to-month, no annual contracts
Based in Jackson, MI · Clients in 18 states
The Reality
Forty years of accounting expertise combined with AI-powered sales automation and strategic business coaching — all under one roof. Built for owner-operated businesses ready to grow.
You're paying for an accountant who shows up once a year at tax time — and you have no idea where you stand the rest of the year.
Your books are a month behind, your invoicing is two weeks late, and collections are a recurring fire drill.
You've been told you should grow, but you don't have a marketing engine, a sales pipeline, or the time to build either.
Every problem still ends up on your desk because there's no one else to hand it to and no system to catch it.
What We Now Offer
Most firms hand you a tax return and disappear. We handle the books, the payroll, the strategy, and the systems that grow your top line — all in one engagement.
01 / Foundation
Stop overpaying. We identify deductions you're missing, plan ahead for tax season, and coordinate your entire tax picture in one place. We also correct entity-structure mistakes — sole proprietorships and partnerships that should be S-Corps — where the tax savings often pay for our services many times over.
Devereaux & Co
02 / Foundation
Clean books on the 15th of every month — Profit & Loss, Balance Sheet, Cash Flow Statement. You'll always know exactly where your business stands and what to do next.
Devereaux & Co
03 / Foundation
Accurate, on-time, every time. Direct deposits, tax filings, year-end forms — completely off your plate. Plus job costing at a depth ADP and Paychex can't match, with full integration into your accounting system.
Devereaux & Co
04 / Growth
Cash flow forecasting, loan preparation, KPI dashboards, and strategic financial leadership — without the full-time salary. We sit beside you in the seat the business needs.
Devereaux & Co
05 / Growth
Automated outreach agents find and qualify your ideal clients on auto-pilot — Apollo + Phantom Buster + email sequences orchestrated through GoHighLevel. Your pipeline fills while you focus on running the business.
Deliberate Achievement
03 / Foundation
Scheduling, intake, billing, document chasing, and follow-up — automated 24/7. The chaos stops landing on your desk because the systems handle it before it reaches you.
Deliberate Achievement
The Outcome
Our model is designed to take a well-run small business and give it the systems, the strategy, and the client pipeline it needs to grow significantly — without adding headcount or asking you to work more hours.
The math is straightforward. Most owner-operators have two missing pieces: a back office that runs without their daily attention, and a sales engine that fills the pipeline whether they're in the office or not. We build both.
Track record across six prior engagements: $173K – $900K in identified outcomes per client.
12-Month Growth Trajectory
Today
+$180K · 12 months
Without adding headcount. Without working more hours. Built on systems that compound — bookkeeping accuracy, automated lead pipeline, monthly cash-flow review, and CFO-level decisions made on actual data instead of gut feel.
Subscription Pricing
Month-to-month. Cancel with 30 days' notice. Every tier includes direct access to Ross and the Devereaux team — no offshore handoffs, no junior staff, no chasing answers.
Not ready for a subscription? Start with the Practice Audit — $1,500 flat, 2 weeks, three calls. We map exactly where your time and money are going and surface three quantified opportunities. If we don't find at least 10× the audit fee in identified annual impact, we credit it toward your first month or refund it. No commitment beyond that.
How It Works
From the first conversation to a fully running engagement — predictable, transparent, and on your timeline.
We start by understanding your biggest frustration. No pitch — just listening. The right solution becomes obvious from there.
We map exactly which services apply to your situation and what a realistic revenue target looks like for your business over the next 12 months.
We install your systems, launch your lead pipeline, and stay alongside you as a partner — not just a service provider.
CPA & tax Advisor · Founding Partner
Career Start
Practice Founded
BDO Seidman
1989
Years in Practice
Based in
BDO Seidman
Jackson, MI
Who You'll Be Working With
Ross has been a CPA since the 1980s. He started his career at BDO Seidman, bought his current practice in 1989, and spent the next four decades doing what most CPAs do: filing returns, putting out fires, and running on adrenaline through every tax season.
"I felt like a MASH doctor — constantly triaging everything. We were reactive. We weren't proactive. Things didn't get done until the gun was put to my head."
Two years ago he started over. He partnered with Deliberate Achievement, rebuilt the firm's operating systems from scratch, automated the bottlenecks, and turned a deadline-to-deadline practice into a forward-looking advisory firm. The change was structural — not a productivity hack.
Today, Ross brings that same rebuild to his clients. The same systems, the same playbook, the same outcome: clean books, full pipeline, strategic clarity, and time back on the calendar.
"We're current with our invoicing. We're on top of our projects. Things are going out the door faster, and we're doing it with one less employee. The cash flow has been like it hasn't been in the last ten years."
Ross Devereaux, CPA & TAX ADVISOR
Founding Partner · 40 Years in Practice · Jackson, MI
Common Questions
Do I have to switch from my current accountant?
Not immediately. Many clients start with Foundation and run it in parallel for 60 days while we get the books current and your reporting cycle established. Once you see the difference, the transition is straightforward — we coordinate directly with your prior firm to pull files, prior returns, and any open items.
My books are a mess. Is that a problem?
It's the most common starting point. We quote a flat-fee Catch-Up & Clean-Up project before the monthly subscription begins — typically $1,500 to $4,500 depending on how far back we need to go and how clean the bank feeds are. You'll see the price upfront before we start any work. Monthly bookkeeping doesn't begin until your books are current.
What's the difference between Devereaux & Co and Deliberate Achievement?
Devereaux & Co is the CPA firm — Tax, Bookkeeping, Payroll, and Fractional CFO services regulated by the AICPA. Deliberate Achievement is the operating partner — AI sales automation, business coaching, and back-office systems. We work as a single integrated team, but the legal and licensing structures are separate. You sign one engagement letter; we handle the rest.
Is this only for businesses in Michigan?
Ross's CPA license is in Michigan, which specifically governs CPA-attest work — preparation of financial statements he'll issue a formal opinion on, such as Reviewed or Audited financials. For everything else — tax preparation, bookkeeping, advisory, payroll, and growth services — we work with clients across roughly 18 states today, with payroll-compliance experience in 45. Most of the work is done remotely through a secure document portal and video calls. Our office is in Jackson, MI, but your geography rarely changes the engagement.
How is this different from a standard accounting firm?
Most firms are reactive — you get a tax return once a year and a bill once a month. We operate like an outsourced finance department: monthly closes by the 15th, quarterly strategy reviews, an AI-powered lead engine, and a CFO-level conversation about your numbers every month at the Growth tier and above. Same compliance work, but plugged into a system designed to grow your top line — not just file your forms.
What if I'm not ready for a subscription yet?
Start with the Practice Audit — $1,500 flat, two weeks, three calls. You walk away with a written report, three quantified opportunities, and a recommended 90-day priority. If we don't surface 10× the audit fee in identified annual impact, the audit fee is credited toward your first month or refunded. No commitment beyond that.
Who actually does the work?
Ross signs every return personally. The Devereaux team handles bookkeeping and payroll directly — no offshore outsourcing. Deliberate Achievement builds and maintains the AI automation stack. Every client has a single point of contact and direct access to Ross at the Growth and Operating Partner tiers.
How quickly can we start?
The 20-minute conversation can usually happen within a week. From there, full onboarding for Foundation takes 10–14 days. Growth and Operating Partner buildouts take 30–45 days because of the automation and CFO setup work. We'll give you a written project plan with milestone dates before any payment is collected.
The Next Step
No pitch. No pressure. Forty years of solving financial problems for businesses like yours — sometimes twenty minutes of the right conversation changes everything.
Or call directly · 517-206-2065
Devereaux & Co
Certified Public Accountants & Business Advisors, serving owner-operated businesses since 1989. Tax, bookkeeping, payroll, fractional CFO, and AI-powered growth systems — under one roof.
In Partnership With
Deliberate Achievement
Business Growth & AI Automation
© 2026 Devereaux & Co · CPA Firm · Est. 1989
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