About
M3R Bookkeeping
Hi there, I'm Marybeth!
I help business owners organize their finances and gain real clarity into how their business is performing.
I spent more than 20 years in corporate leadership, running accounting, finance, and operations for mid-sized and multimillion-dollar companies. I started M3R Bookkeeping to bring that same expertise and professional service directly to small business owners.
Throughout my career, I’ve managed the books and built trusted relationships with businesses across a wide range of industries, including real estate, short-term rentals, construction, manufacturing, e-commerce, technology, advertising, law firms, medical practices, restaurants, and more.
What sets me apart is that you work with me directly. No hand-offs, no rotating staff. I manage your books one-on-one, so I know your numbers and your business inside and out. Together, we’ll see exactly where your money is going, cut unnecessary expenses, and uncover opportunities to strengthen cash flow and grow your profit.
The result? Clearer decisions, more time to focus on your business, and a partner invested in your growth. And at tax time, your books are accurate, up to date, and ready for your CPA, with no last-minute surprises.
I am based in the New Jersey/New York area and work remotely with businesses nationwide using secure, cloud-based systems.
Are you ready to take a closer look at your numbers and see where your business can improve financially?

20+
Years in Finance & Ops
Bringing financial structure to businesses in real estate, hospitality,
construction, and tech.
$500K - $30M+
Business Revenue Experience
Experience supporting businesses across different industries and stages of growth.
100%
Tax-Ready
Financials Delivered, tax-ready financials year after year.
120+
Hours Saved Annually
Giving you back your time by taking the heavy lifting of monthly bookkeeping completely off your plate.
QUICKBOOKS ONLINE SERVICES
Full-Service Bookkeeping, Simplified
ONGOING SUPPORT
Monthly Bookkeeping
Your books, closed accurately every month. I categorize every transaction, reconcile your bank and credit card accounts, and catch errors before they become problems, so you always know where your business stands.
Monthly bank and credit card reconciliation
Transaction categorization and balance sheet review
Monthly financial statements and answers to your questions
HOW IT WORKS
A Predictable Monthly Rhythm
No guesswork, no waiting. A steady monthly process means your books are reviewed, reconciled, and in your inbox when you expect them.

01_Connect
Securely link your bank and credit feeds- read only access, nothing changes on your end.

02_Categorize
Every transaction is reviewed and sorted into the right account, not just auto-matched and forgotten.

03_Reconcile
Each statement matched line by line against your books until the balance is exact.

04_Deliver
Clean, reviewed finanancial statements land in your inbox by the 15th of every month.
Additional Services
START FRESH
Cleanup & Catch-Up
Whether you're behind by a few months or a few years, your books will be brought fully up to date and perfectly balanced. No judgment, ever: falling behind happens to busy owners, so you get a clear plan and a fresh start without the lecture.
Every missing month is entered, categorized, and reconciled, whether you're 3 months behind or 3 years.
Accurate, balanced books: each account is matched to your bank and credit card statements, leaving you with clean financials ready for tax filing or a lender.
Resolve errors and prepare books for your CPA.
PRACTICAL GUIDANCE
QuickBooks Consulting
Prefer to keep your books in-house? Get QuickBooks set up the right way, a smoother process, and clear guidance on what to do next.
QuickBooks setup done right: your chart of accounts, bank feeds, and settings are configured for your business from day one.
A process that runs smoothly: simple routines for invoicing, bill pay, and month-end, so nothing piles up or gets missed.
Training and ongoing guidance: you and your team learn exactly what to do, with support on hand whenever questions come up.
