Meet Avonlea Financial Group
At Avonlea Financial Group, partners Katherine Gross and Gregory Sinatra have joined forces to create something truly special. They’ve assembled a team of specialists and offer guidance designed to deliver financial planning that’s not only efficient and thorough—but also warm and personal.
Together, Katherine and Greg bring more than 50 years of combined experience to the table. Their knowledge and dedication have allowed Avonlea Financial Group to expand its reach and make a meaningful, positive difference in the lives of clients.
"Two are better than one, because they have a good reward for their toil. For if they fall, one will lift up his fellow. But woe to him who is alone when he falls and has not another to lift him up"
Ecclesiastes 4: 9-10
Certified Kingdom Advisors
As Certified Kingdom Advisors®, Katherine and Gregory integrate their Christian faith into their professional practice, enriching the financial guidance they offer. This distinctive approach empowers clients to align their financial decisions with biblical values, ensuring their financial journey reflects both wisdom and faith.
Navigating the financial industry while staying true to Christian beliefs and values can sometimes be challenging. That’s why becoming a Certified Kingdom Advisor® matters so deeply to Katherine and Greg. As part of this principled group of Christian financial professionals, they have been specifically trained to provide biblically wise financial advice for clients seeking to fully integrate their faith into every aspect of their financial lives.
Kingdom Advisors’ vision is to equip financial professionals with biblical financial wisdom and to build a trusted network of recognized, credible Christian advisors. At Avonlea Financial Group, Katherine and Greg proudly pursue this faith-and-work integration at the highest credentialed level in the financial planning world—so they can help you achieve a financial future that honors both your goals and your faith.
Making Waves for Awareness
Katherine is no stranger to diving in and making waves—both in her professional and personal life. As a dedicated financial advisor, she excels at assessing client needs and guiding individuals and families toward achieving their financial goals.
Outside the office, Katherine’s competitive spirit shines through as a member of Swamp Water Aquatics of Gainesville. Her commitment to staying active and connected to her community has also inspired her to take meaningful action where she sees a need.
Each year, Katherine hosts “Making Waves for Awareness,” a swim-a-thon dedicated to raising awareness for autoimmune encephalitis (AE) and generating support for organizations like the Autoimmune Encephalitis Alliance. Her passion for this cause is deeply personal: after witnessing a family member endure a misdiagnosis due to lack of awareness about AE, Katherine became a devoted advocate.
Through her fundraising efforts and community outreach, Katherine has pledged to ensure that more people understand autoimmune encephalitis and its profound impact on individuals and families. Whether she’s in the pool or in the office, Katherine is committed to making a difference—one wave at a time.
Scout Community
Greg’s passion for service shines through his many collaborations with local Troops of Scouting America (formerly Boy Scouts of America). As a dedicated mentor, Greg introduces youth to essential life skills—including personal finance, time management, and career exploration—by guiding them through the Personal Management merit badge.
Greg also shares his musical talents as a Bugling Merit Badge Counselor, assembling Scout Buglers each month at Marietta National Cemetery. Through bugling, he inspires young scouts and channels his love of music into a powerful purpose: honoring active military members and veterans with stirring musical tributes.
Beyond his work with individual scouts, Greg loves bringing clients and scouts together to make a meaningful impact in the community. His efforts support cause organizations such as the Atlanta Area Council of Scouting America, Taps For Veterans, and The Sandwich Project, strengthening ties between financial stewardship and community impact.
At Avonlea Financial Group, Greg embodies the belief that true financial stewardship extends beyond numbers—it’s about building community, nurturing future leaders, and serving with heart.
Meet Our Team
Gainesville FL Office
Katherine Gross
FIC, CKA®
I view money not as a goal, but as a tool - one that can afford you a life rich in meaning and gratitude. It is my belief that humanity thrives when individuals make the most of all they've been given. My calling is to help you do just that. The right guidance can help you get there. Driven by your goals and values, I'll draw on my three decades of industry expertise to help you map out a path to a more secure financial future.
- Title
Financial Advisor
- State(s) Licensed
- AL , AZ , FL , GA , IN , KY , LA , MO , NC , OH , PA , TX
- Location
Gainesville, FL
- Website
- https://connect.thrivent.com/katherine-gross
- Phone
- 352-505-8905
Gregory Sinatra
CFP®, CAP®, FIC, CKA®
My calling is to guide families to be the best stewards of all that God has entrusted and blessed them. This journey can include providing comprehensive, financial guidance that reflects their goals and values. Whether it is helping them manage assets pr protect their family , we partner to develop financial strategies that support the calling and stewardship that God has presented to them. Contact us today to orient your financial journey that is before you.
- Title
Financial Advisor
- State(s) Licensed
- AL , FL , GA , IL , IN , LA , MO , OH , OR , PA , TX
- Location
Marietta, GA Office
- Website
- https://connect.thrivent.com/gregory-sinatra
- Phone
- 404-698-1238
Aydra McKinney
Aydra plays a vital role in elevating the client experience by ensuring our team is thoroughly prepared for every meeting and by implementing effective follow-up strategies and tactics. She acts as a primary point of contact for clients, providing support, and answers to questions both before and after their meetings with us. Whether clients need help coordinating next steps, accessing information, or navigating their financial journey, Aydra is there to assist with responsiveness and care. Her commitment to client service allows Katherine and Greg to focus on delivering excellent financial advice with clarity and attention.
- Title
Office Professional
- Location
Gainesville FL Office
- Phone
- 352-505-8905