Frank Prather, Owner
Certified Personal Trainer
Founder and head coach of Sun House Fitness.
At age 19 Frank won the NPC Teen Mr. Maryland Bodybuilding Competition (Nice glory days reference Al Bundy) and soon after became one of the youngest personal trainers to be certified by the National Academy Of Sports Medicine. He applied the practical knowledge he gained as a competitive bodybuilder and powerlifter to train clients that included “regular” people, youth, nationally ranked HS soccer players, and even notable NBA athletes.
When he transitioned into the corporate world, Frank pivoted his own training focus toward functional fitness, and HIIT combined with traditional stength and conditioning. He researched and tested various approaches and exercise programs to help him train and compete in over two dozen Spartan Races, Tough Mudders, and other obstacle events.
Ultimately, Frank analyzed what he learned from a diverse cross section of fitness programs and athletic activities, using that aggregated knowledge to develop his own unique system of training. It combines the most effective facets of functional training, high intensity intervals, strength, and conditioning. And all of it can be applied by anyone, at any age or fitness level, to improve health, fitness, and overall well-being.. He’s also developed a foundational nutrition plan to help clients lose weight, gain muscle, and get healthier.
Today Frank trains daily ,rucks, and occasionally practices Brazilian Jiu Jitsu (poorly). He studies advances in longevity and vitality at all stages of life because he wants to live forever while maintaining a high level of fitness (and perfect hair). His passion is utilizing his lifetime of studying and practical experience to help others adopt a healthy, fitness oriented lifestyle and achieve their goals.
He holds a current Personal Trainer certification from the International Sports Sciences Association, a Precision Nutrition L1 Certification, and is a Certified Assisted Stretch Practitioner.
When he’s not working out, training clients, or spiking his hair, Frank spends his time with his wife Lisa and son Frankie (the 4th).
Abby Kern
Certified Personal Trainer & Coach
Abby’s passion for fitness began at a young age, driven by her background in competitive sports. Her dedication to maintaining an active lifestyle led her to pursue a career in personal training, where she aims to inspire others to find joy in movement and healthy living.
Having earned her certification with the National Academy of Sports Medicine, Abby is thrilled to be a part of the Sun House team, training clients both one-on-one and in dynamic boot camp classes. As someone who repeatedly tests their physical and mental limits, Abby is always seeking new challenges and adventures to push her boundaries, inspiring her clients to do the same.
When she’s not at the gym, you can find her playing beach volleyball, paddleboarding on local waterways, or experimenting with new recipes in the kitchen.
Jake Ferguson
Certified Personal Trainer & Coach
Jake is a personal trainer and coach certified by the American Council on Exercise. Growing up in Texas he played numerous sports and developed a passion for exercise and fitness. He loves introducing people to the benefits of a healthy lifestyle and strives to see his clients succeed. When he’s not coaching bootcamp classes or training one-on-one clients Jake is spending time with his wife Alicia, dog Bo, and two cats, Socks & Cuddles.
Marybeth Massey
Certified Personal Trainer & Coach
Marybeth is a personal trainer and coach certified by the National Academy Of Sports Medicine. Shestarted personal training in 2020 to follow her passion by helping people create realistic habits to reach their health goals and implement a fitness lifestyle. She deeply believes that physical health can improve every area of our lives and that strength training is crucial for longevity. Her mission is to help others feel strong and confident in and out of the gym.
Danielle Sudrabin
Certified Personal Trainer & Coach
Danielle has been a certified personal trainer since 2024, but fitness has been part of her life for as long as she can remember. After experiencing firsthand how much movement helped her, not just physically, but mentally, he knew she wanted to share that with others professionally.
Since then, she's helped clients reach their goals through one-on-one training, small group fitness, and classes at the gym. She takes pride in meeting clients exactly where they are, then pushing them past what they thought was possible. Her goal? To make training something you actually look forward to.
Work out with Danielle and expect a session that's engaging, creative, and just plain fun. You'll leave Sun House Fitness feeling better than when you walked in.
Outside the gym, Danielle enjoys cooking, camping, and long walks with her puppy.
Lauren Shea
Certified Stretch Practitioner
Lauren is a Certified Assisted Stretch Practitioner and holds a Degree in Exercise Science. As a former college athlete, she has a passion for fitness, wellness, and helping others feel their best. With 3 years of assisted stretching experience she specializes in helping people improve their flexibility, mobility, and overall movement. She believes that wellness looks different for everyone and enjoys helping each individual find ways to feel their best. When she’s not at work, she loves to stay active, spending time with friends and family, and exploring the Wilmington area!

