About Seroka

Pat Seroka founded the agency in 1987, drawing on years of research into why people choose one brand over another and what truly drives loyalty. Under his leadership, Seroka quickly gained national recognition in the mortgage arena through joint ventures with the Mortgage Bankers Association (MBA).

Named Entrepreneur of the Year, Pat has been widely published in leading mortgage industry publications and remains a sought-after voice on brand strategy. Beyond the agency, he is an avid Porsche enthusiast, holds a Competition Racing License, and enjoys traveling with his wife, Linda. Pat’s entrepreneurial spirit and relentless curiosity remain at the heart of Seroka’s culture.

John Seroka plays a central role in shaping the agency’s strategic direction and driving client growth initiatives. His career began on the front lines as a mortgage loan originator in the competitive Los Angeles and Orange County markets, giving him firsthand insight into the challenges and opportunities lenders face.

Today, John is a recognized leader in the industry, serving as Chairman of the California MBA’s Mortgage Technology and Marketing Committee and speaking frequently on trade show panels about the evolving landscape of mortgage marketing. A graduate of Marquette University with a B.A. in Business and Broadcast & Electronic Communications, John balances his professional life with interests in nutrition, fitness, and outdoor activities. His forward-looking approach ensures Seroka remains a step ahead in a rapidly changing market.

Rachel helps clients put the spark back in their marketing. Whether she is helping clients secure coverage with media outlets or increase their brand awareness on social media, Rachel is driven by her clients’ successes.

Prior to working for Seroka, Rachel spent over 12 years working for various agencies and corporations managing their marketing activities. She also worked as the Communications Director for the city of Williston in North Dakota during the oil boom where she had the opportunity to work with business leaders and media outlets from all over the world.

In her free time, Rachel enjoys spending time with family and friends, running, yoga, gardening, and baking.

Robin is a marketing and client service professional with more than 15 years of experience spanning advertising, brand strategy, digital media, and client relationship management. She has spent the past 3+ years working in the mortgage industry, where she combines her strategic thinking and client-first mindset to deliver thoughtful, results-driven solutions.

Throughout her career, Robin has partnered with a wide range of clients across industries, helping them elevate their brands, strengthen customer engagement, and execute high-impact marketing initiatives. Her background includes roles in agency environments, corporate marketing, and digital media planning—giving her a broad and versatile skill set.

Robin holds a B.S. in Business Administration with an emphasis in Marketing from California State University, Long Beach.

A fun fact about Robin: while planning digital media campaigns for theatrical releases at Universal Pictures, she once attended a client event with Alfonso Ribeiro—better known as Carlton from The Fresh Prince of Bel-Air.

Houston oversees our Digital Marketing team. He has 35+ years of experience in marketing and advertising and has been involved in hundreds of website development projects, countless web-traffic generating campaigns, and numerous marketing strategy developments for premium brands in financial, medical, manufacturing, and other industries.

When not working, he enjoys… working 😉

Mike brings over 20 years of marketing and design experience to the table in both agency and in-house settings. He’s designed for local, national and international clients in industries including B2B, mortgage, finance, healthcare, sporting goods, news/magazine publication and manufacturing. Through the years, Mike has shared his expansive knowledge of design and marketing while instructing courses at the college level. Mike understands that although great design is creative, it is not universal. It needs to be tailored for each client. He strives to learn about each client and find that impactful place were creativity meets common sense in every project.

In his free time, Mike enjoys being on the sidelines with his wife cheering on their daughter and son at soccer and martial arts events. As an art major, he still enjoys the fine arts, but admits he has done more painting of interior house walls than stretched canvas in the last decade.

Celeste has shown talent as an artist since she was a young child, her kindergarten teacher predicted that she would be an artist,and the prediction held true.

Celeste earned her Bachelor of Arts (B.A.) in Graphic Design from Mount Mary University; Milwaukee, WI and has been a professional designer for more than 25 years. She began her career as an in-house designer for a printer and then quickly made the move to the agency side. She has a background in leading creative vision, ideation, strategy, and execution. She has extensive experience working in the healthcare, financial, higher education and service industries. And has been fortunate to have had the opportunity to work on accounts such as Johnson Controls, Briggs & Stratton, Aurora Healthcare, Time Warner, GE Healthcare, Stephens College, Stetson University.

Mary-Iris joined Seroka in 2015 to lead the agency’s content development and copywriting services. She started her career in the financial services industry, and later moved to the agency side to pursue her passion for writing. Her financial services background served her well as she worked with clients in the banking, mutual fund, mortgage, investment and retirement services sectors.

Mary-Iris holds a BA in Journalism from Marquette University.

Chelsea Mize is a B2B content marketing strategist and copywriter with 10+ years of experience in mortgage and financial services. She helps lenders, servicers, and fintechs tell clearer stories, navigating industry complexity and compliance to craft nuanced messaging that’s clear, sharp, accessible, and human. Her work spans positioning, thought leadership, and sales enablement.

Rachel helps clients put the spark back in their marketing. Whether she is helping clients secure coverage with media outlets or increase their brand awareness on social media, Rachel is driven by her clients’ successes.

Prior to working for Seroka, Rachel spent over 12 years working for various agencies and corporations managing their marketing activities. She also worked as the Communications Director for the city of Williston in North Dakota during the oil boom where she had the opportunity to work with business leaders and media outlets from all over the world.

In her free time, Rachel enjoys spending time with family and friends, running, yoga, gardening, and baking.

Houston oversees our Digital Marketing team. He has 35+ years of experience in marketing and advertising and has been involved in hundreds of website development projects, countless web-traffic generating campaigns, and numerous marketing strategy developments for premium brands in financial, medical, manufacturing, and other industries.

When not working, he enjoys… working 😉

Mary-Iris joined Seroka in 2015 to lead the agency’s content development and copywriting services. She started her career in the financial services industry, and later moved to the agency side to pursue her passion for writing. Her financial services background served her well as she worked with clients in the banking, mutual fund, mortgage, investment and retirement services sectors.

Mary-Iris holds a BA in Journalism from Marquette University.