About Sterling

“To professionally and efficiently protect and advocate for those in need.”

In life, there are moments when knowing who to turn to makes all the difference. It’s in these moments, our fears and uncertainties leave us feeling the most vulnerable. This is especially true, when our feelings are driven by the need to protect someone we love.

You see, coming alongside someone in their time of need is a tremendous gift. It can be a listening ear or a word of comfort. Sometimes it’s helping to answer the tough questions or offering guidance when the world seems dark. But the truth is, it can even be the voice of reason. This can be a source of comfort when making the tough but necessary decisions.

At Sterling Case Management & Fiduciaries of Arizona, we understand the opportunity we hold to make a difference in someone’s life. It’s why, with a servant’s heart our focus is on serving others. Quite simply, every decision, every touch-point we make is illustrated with dignity and compassion.

We begin with our gift for listening, a kindness you’ll feel right from the start. You see, we’re interested in what’s on your heart as much as what’s on your mind. It’s all part of our commitment to doing what’s best for you.

In many ways, at Sterling Case Management & Fiduciaries of Arizona we plant seeds of hope and comfort. What grows is good faith, loyalty and trust. A great way to be a blessing in someone’s life.

Meet Us

Martelle Olsen

President & Fiduciary

Martelle is a licensed Fiduciary.  In addition, she has thirteen years Case Management experience. She developed many of her extensive Fiduciary and Case Management skills and insights during her tenure with Fleming & Curti, PLC. She also worked at Tucson Medical Center and Elder Care Research & Consulting. Martelle is a member of the Arizona Fiduciary Association and The National Guardianship Association.   

Martelle has Master’s Certificate in Gerontology and an undergraduate degree in Public Administration, Health & Human Services. During her university tenure, she became passionate about the importance of providing quality Fiduciary and Case Management oversight for the elderly, the mentally ill and individuals with special needs.

She was born in Logan, Utah and lived a portion of her formative years in Durban, South Africa. Her family moved to Tucson during her High School years and since then, she has considered Tucson her home. Martelle and her husband Gary have four children.

“Be kind whenever possible. It is always possible.” 

Dalai Lama

Ruth Georgina Covey

Vice President, Operations

Ruth has an extensive operations and corporate leadership background with companies such as Raytheon, Boeing, Applied Materials and ATS Armor. Among her core strengths are process development and enhancement, quality management systems, security and customer satisfaction.

Ruth has a Masters in International Management and an undergraduate degree in Manufacturing Engineering. She is the founder of Arizona Magic of Music & Dance, a non-profit theater program for individuals with physical and cognitive disabilities and co-founder of Women’s Safety & Leadership Training, a non-profit program to train, motivate and mentor women of all backgrounds and ages to be formidable opponents and committed leaders.

She is a US Citizen, born in the United Kingdom and reared in the Republic of South Africa. Ruth has three children.

“The main thing, is to keep the main thing the main thing.”

Steven Covey

Andy Latherow

Sr. Case Manager

Andy is a Case Manager who developed his unique capabilities over twenty-three years of working with people to achieve personal improvement, self-defense capabilities and life skills development. He is enrolled in the National Certified Guardian and Fiduciary Certification programs.

Andy has an undergraduate degree in Psychology. Over the years, he developed an awareness and passion for the role of guardianship for the elderly, mentally ill, and those with special needs.

He was born in Cocoa Beach, Florida. In 2010 he moved to Arizona with his wife Debbie and their family.

“No act of kindness, no matter how small, is ever wasted.”


Liz Posey

Case Manager 

Liz is an experienced, resourceful and caring Case Manager. Her enjoyment and ability to work with the elderly, mentally ill and those with special needs grew steadily through her role as the Activities Coordinator at a local nursing home. She is currently enrolled in the National Certified Guardian Certification Program and is a member of the Arizona Fiduciary Association.  

During the twelve years Liz worked for Raytheon Missile Systems, she held various roles including Human Resources.

She has taken paralegal courses at Chaparral Career College and is continuing her commitment to lifelong education at Pima Community College.   

She grew up in Southern California, but considers Tucson her home. Liz has four children and two grandchildren.

“Not all of us can do great things. But we can do small things with great love.”

Mother Teresa

Alicia Hunt

Assistant Case Manager

Alicia is an experienced customer service focused Receptionist and Administrative Assistant. She is compassionate, personable, responsible and has an upbeat, positive attitude towards her responsibilities.

Alicia developed her skills working as the Outreach Administrative Assistant for Pantano Christian Church and Administrative Assistant for The Arizona Advisory Board. She is a High School Graduate.

Alicia is a native of Tucson. She and her husband Mike have four children.

“And these three remain: faith, hope and love. But the greatest of these is love.” 

Corinthians 13:13

Sandy Hawkins

Client Finance

Sandy has worked in finance for over forty years.    She spent much of her career in the Ohio oil industry and in government at the county level.   She is a hardworking and detail oriented financial professional.

Sandy is originally from Holmes County, Ohio.  She and her husband Larry moved to Arizona in 2011.  They currently live in Tucson with their much-adored pet dog, Anna.

“If opportunity doesn’t knock, build a door.” 

Milton Berle

Emily Verdugo

Receptionist & Administrative Assistant

Emily has worked in the healthcare field since the age of eighteen.  She has been responsible for several aspects of care to include everything from activities with the elderly to auditing healthcare facilities to ensure the best possible care for clients.  She is a hardworking, goal driven, caring person who has compassion for people, especially the elderly and those with special needs.

Emily is originally from Yuma, Arizona, but has lived in Tucson for the past ten years and considers it home.  She is an animal lover and loves her family.  

“Strive not to be a success, but rather to be of value.” 

Albert Einstein