The Brains Behind the Books
(Minus the Stuffy Attitude)
Real Humans. High Standards. Zero Overseas Outsourcing.
Take one look at me—green hair, botanical tattoos, and all—and you’ll know right away that I didn’t build a traditional, rigid accounting firm. I built Details Matter to be a breath of fresh air for busy six- and seven-figure CEOs.
But behind my approachable, jargon-free style is a powerhouse engine of dedicated professionals.
While I serve as your high-level strategist, the day-to-day precision of your books is managed by our incredible team across the country. We don’t believe in the traditional corporate brick-and-mortar office, but we believe fiercely in accountability.
When you look at our team, here is what you are actually getting:
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100% US-Based Direct Employees: Many large accounting firms cut corners by outsourcing your sensitive data to cheap overseas call centers or unvetted freelancers. Every single person on our team lives in the United States and is a direct employee of our firm. They are background-checked, fully vetted, and rigorously trained to our exact high standards.
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A Dedicated Partner, Not a Rotating Door: You won’t get passed around a chaotic customer service queue or forced to call a 1-800 number. Your business is paired with a dedicated bookkeeper who learns your industry, masters your workflows, and knows your name.
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Complete Quality Control: Because our team members are true employees, your data never leaves our secure, encrypted US network. We manage their ongoing training, track their execution, and review their work internally so you get flawless, CPA-ready financials every single month.
Katie Hanna, CB
Owner & CEO
If I start by telling you my degree is in animal behavior, you may wonder how I ended up in accounting…but it’s not as surprising a transition as you might think!
Yep, I wanted to be a zookeeper. However, thanks to being a bit of a wild child who loved climbing (and falling) out of trees, I soon realized my past injuries made this highly physical career a no-go. So, I worked as a vet and surgery tech at a veterinarian’s office. I then joined the Maryland SPCA in Baltimore, where I spent four years wearing many hats as an admin, vet tech, behavior assessor, foster coordinator, and adoption counselor.
My time with the shelter shaped my organizational and detail-oriented mindset. When it comes to data, my philosophy is to check as many boxes as possible. You never know when you’ll need that information later!
When my husband got a job in Frederick (my hometown), I decided to move back and make a career shift. The freedom and flexibility of business ownership appealed to me—and who better to learn from than my mom, Joanne Baum, the founder of Details Matter?
I received my certification (CB) from the American Institute of Professional Bookkeepers (AIPB) in 2011. I worked as an administrative assistant and bookkeeper at a CPA firm to gain some experience while I was learning.
When the CPA firm was bought out by a much larger firm, I decided it was time to move on and join my mom full-time at the beginning of 2016. She became my mentor until she stepped back in 2017 and handed over the reins.
I’m proud of how my team has grown since then to include a staff of qualified bookkeepers who uphold the firm’s name with the same level of care and attention to detail!
In my free time, you can find me:
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- Hanging out with my family—including my fur babies
- Enjoying cooking and gaming
- Tending to my large collection of houseplants
Let’s get to know each other!
Meet Our Team

Katherine Blackburn
Operations Manager
Bio
West Virginia
As the Operations Manager and Katie’s right hand, Katherine is the engine that keeps Details Matter Bookkeeping running smoothly. With a Bachelor’s degree in Accounting and five years of experience, she specializes in “unraveling the mysteries” of complex accounts. Her goal is always to take the complicated and make it easy for clients to understand, ensuring they have the clarity they need to lead their businesses.
When she isn’t streamlining workflows or solving financial puzzles, Katherine is usually found with a crochet hook in hand. An avid crafter, she spends her free time creating massive, cozy winter blankets—a perfect metaphor for the comfort and coverage she provides to our team and clients alike.

Kris Nicodemus
Lead Bookkeeper
Bio
Maryland
Kris brings a lifetime of hands-on financial expertise to her role as Lead Bookkeeper at Details Matter. Having grown up in a family business and later managing the financial operations of multiple companies, Kris’s approach to bookkeeping is rooted in real-world experience. She joined the team in 2022, following a career that included time at Edward Jones and in Federal Contracting. Today, she uses her deep knowledge to supervise our bookkeeping team, providing training and troubleshooting whenever a complex “puzzle” arises.
Kris views a client’s financial health with the same weight as their physical health, believing that trust and loyalty are the foundation of any great partnership. She is a natural problem-solver who thrives on finding solutions to difficult challenges and checking them off to completion.
A Maryland resident, Kris is a dedicated mom who loves heading to the gym or just hanging out with her kids. She is a fan of anything that keeps her mind sharp—from Lego sets and puzzles to crime documentaries and a good book. Competitive, hardworking, and an enthusiast for tattoos and a good IPA, Kris is the kind of fierce advocate you want in your corner.

Danielle Jaramillo
Onboarding & Project Coordinator
Bio
New York
Danielle is the first point of contact for our new clients, specializing in the essential “deep clean” and setup process. With 19 years of experience in the accounting world and an Associate’s degree in Accounting, she is an expert at bringing order to chaos. Danielle believes that success is built on a foundation of organization; she takes great pride in ensuring every detail is perfectly in place before a client is transitioned to their permanent bookkeeper.
Based in New York, Danielle is family-oriented through and through. When she isn’t organizing workflows, she is almost certainly with her children—whether she’s cheering them on at their sporting events or heading to an arcade. A true Disney enthusiast, her favorite place to travel is Disney World, where the magic is in the details (just like her work!).

Deanna Nixon, CPA
Tax Manager
Bio
Maryland
Deanna is our resident numbers-detective and the lead for our tax services. With eight years of professional accounting experience and a BS in Business Administration, she brings the prestigious CPA credential and a high level of expertise to the team. For Deanna, the beauty of accounting lies in its certainty; in a world of variables, she finds true professional satisfaction in a balance sheet that ties perfectly to the penny. Her mission is to transform client fear and anxiety into total financial confidence.
Outside of the office, Deanna describes herself as a “collector of hobbies.” Currently, she is immersed in the intricate art of Pysanky—traditional Ukrainian Easter eggs created using a detailed wax-resist dyeing method. As the seasons change, you’ll likely find her trading her beeswax and dyes for outdoor adventures.
Kim Riggen
Bookkeeper
Bio
South Dakota
With 19 years of experience spanning both QuickBooks Desktop and Online, Kim is a seasoned pro who thrives on the precision of reconciling accounts and working with numbers. Based in South Dakota, she is dedicated to providing her clients with timely financial reports and clear, consistent communication.
Outside of the office, Kim is a busy mom of two who loves staying active with her kids’ activities. In the summer, you’ll likely find her camping, and during pheasant season, she enjoys walking the fields at her brother’s hunting lodge.

Sarah Sweeney
Bookkeeper
Bio
Maryland
A Penn State alumna with a background in Hospitality Management, Sarah brings a service-oriented heart to the world of finance. She has spent the last two of her three years in the industry right here at Details Matter, where she focuses on giving her clients total peace of mind. Sarah understands that behind every spreadsheet is a business owner who needs clarity, and she thrives on providing the support they need to feel confident in their numbers.
Living in Maryland, Sarah’s life outside of work is joyfully busy. As a mom to a three-year-old and a one-year-old, she finds magic in the everyday adventures—whether it’s a trip to the library, the playground, or even a simple run to the grocery store. For Sarah, there’s nothing better than seeing the world through her children’s eyes.

Sesly Emerson
Bookkeeper
Bio
California
Sesly brings seven years of accounting experience and a keen eye for detail to the Details Matter team. As a Certified QBO Payroll Specialist, she is passionate about the “clean-up”—finding immense satisfaction in ensuring every financial detail is accurate, consistent, and perfectly reconciled. Based in California, Sesly prides herself on delivering uniform and reliable results that give clients peace of mind.
When she isn’t balancing the books, Sesly is likely hanging out with her two kittens and her dog (and she’s currently on the hunt for a “couch potato” pup to join the family). She is a huge fan of Halloween and an award-winning costume designer, consistently placing in the top of her local Halloween contests. While she claims to be shy, she’s a powerhouse on the karaoke stage with a repertoire ranging from Blondie to Evanescence.
Meet Our Furry Team Members

Akali

Zoe

Squeak

Copper & Blue

Ashe & Beans

Fuji

Autumn

Ragnar

Utred

Carolina Reaper

Rudolph

Skye

Jack

Molson
Ready to Put Our Team to Work for Yours?
You didn’t start your business to spend your weeknights reconciling receipts and stressing over payroll deadlines. We’re here to take the administrative weight off your shoulders so you can step completely back into the CEO chair.
Let us manage the meticulous details so you can focus on the big picture.










