Staff Directory

Welcome to Our Staff Directory

Contact Us

Sean Retke

Cell Phone: (702) 499-1450
SeanR@cornerstoneinsnv.com

Sean Retke has over 10 years experience in the insurance industry, and is dedicated to providing families and businesses with outstanding service for all of their insurance needs. Sean is eager to help reach the individual and diverse goals of each client. He is a Las Vegas native, and Alumni of the University of Nevada Las Vegas, with a degree in Business Management.

---

Lauren Koutsoumbas

Cell Phone: (702) 250-0640
LaurenK@cornerstoneinsnv.com

Lauren Koutsoumbas has been in the financial service Industry for over 13 years. She grew up in Michigan, and attended Indiana University. Lauren prides herself in going above and beyond for her clients. She believes that two of the most important qualitiies in business are integrity and honesty. In these fast changing times, it is important to have an insurance professional who is not only knowledgeable, but who is also dedicated to service.

---

Christine White

Cell Phone: (702) 354-3073
ChristineW@cornerstoneinsnv.com

Christine White had been in the medical industry for over 15 years prior to entering the insurance industry. With a strong patient care philosophy and customer service background, she understands the need for providing clients with the respect, knowledge and care they deserve. Christine grew up in upstate New York, and attended San Diego State University before moving to Las Vegas.

---

Susan Dute' Hover

Cell Phone: (702) 472-0332
SusanH@cornerstoneinsnv.com

Susan Dute’ Hover has been working in the financial services industry for over 20 years. She holds a degree in Business Administration with an emphasis in Finance from the University of Nevada Las Vegas. Her number one priority is to help her clients stay informed, and provide the best options to fit their needs. She cares for her customers like family!

---

Gary Hay

Cell Phone: (702) 205-8740
GaryH@cornerstoneinsnv.com

Gary has been in Las Vegas for 16 years. After a successful 20+ year career in Medical Publishing he decided to make a career change to the Financial Services Industry. Gary has been married to his wife Michelle for 31 years and they have three children with one still at home. Gary graduated from Middle Tennessee State University with a bachelor’s degree in Marketing. Gary is pursuing a Master of Finance Degree. Gary is currently serving as President of Business Networking International Henderson Chapter. Gary enjoys the beach, boating, golf, reading and spending time with his family.

---

Faith Bautista

Phone: (702) 355-4241
Email: faithb@cornerstoneinsnv.com 

Faith has been serving her clients' financial needs for over 10 years. She was born and raised in the Philippines and moved to Las Vegas in 1994.
Faith takes a personal approach to every aspect of her business - she's passionate in serving her clients and committed in making a difference for individual and families by providing the education & general understanding about financial concepts so that people can make the right decision to fit with their needs and financial goals. She's very positive, driven, self-motivated, caring and a professional with exceptional customer service and leadership qualities.

---

Svetlana

Svetlana Sumschi was born in Moldova. After graduating from Academy of Economic Studies, where she majored in Marketing and Logistics, her dream of coming to The USA became true. Here she became a photographer for a period of 7 years. Svetlana speaks 4 languages: Romanian, Russian, Spanish, and English.  Svetlana is proud to be a life and health insurance broker. She loves helping people in need while giving them the knowledge and choices to make an informed decision.  In her free time, she loves to travel and spend time with her family and friends.

---

Dalyce Lazaris

Phone: (702) 203-6470
Email: dalyce@cornerstoneinsnv.com 

Dalyce was a born-and-raised in Las Vegas. She spent the early part of her professional career in the hospitality industry after graduating from Seattle University. When she transitioned to the financial industry, happenstance landed her with Cornerstone Benefits. She prides herself on going the extra mile for her clients. In her free time, she enjoys traveling, working out, video games, books, and film!

---

Warner

Warner was born in San Antonio, Texas. At 18 years old Warner enlisted in the military and served a total of over 40 years both uniform military and Civilian Civil Servant (DoD). He has been married for 46 years to his amazing wife. They have 2 children and 3 grandchildren.  Warner graduated from National University in San Diego with a B.A. in Behavior Science and a minor in Addictive Disorders. Warner moved his family to Henderson, NV, in 2001, after retiring from Uniform Military.  After working at Nellis AFB for 18 years Warner retired form Civil Service. Warner has worked in Financial Industry since 2006.  He enjoys spending time with his family, listening to music, going to movies, all sports, and traveling.

---

Lauren

Warner was born in San Antonio, Texas. At 18 years old Warner enlisted in the military and served a total of over 40 years both uniform military and Civilian Civil Servant (DoD). He has been married for 46 years to his amazing wife. They have 2 children and 3 grandchildren.  Warner graduated from National University in San Diego with a B.A. in Behavior Science and a minor in Addictive Disorders. Warner moved his family to Henderson, NV, in 2001, after retiring from Uniform Military.  After working at Nellis AFB for 18 years Warner retired form Civil Service. Warner has worked in Financial Industry since 2006.  He enjoys spending time with his family, listening to music, going to movies, all sports, and traveling.

---

Olivia Castillo

Phone: (702) 677-2072
Email: oliviac@cornerstoneinsnv.com 

Olivia Castillo was born raised in Las Vegas, Nevada. She has worked in the insurance industry for over 5 years and loves being part of the Cornerstone family. Olivia is licensed in both Health and Life Insurance. She also has a bachelor’s degree in Marketing from UNLV’s Lee Business School.  When she is not helping people with their insurance, she enjoys spending time with her husband and daughter. She also loves cooking, exercising, and traveling.

---

Sean

Sean Retke serves as the President within the organization. He has over 18 years of experience in the insurance industry, and he leads the Employee Benefits division of the agency. He takes pride in providing the best service possible using his in-depth knowledge, education, and expertise. As a licensed broker, his goals include meeting the diverse needs of clients and educating clients on the everchanging guidelines and regulations of insurance. In addition to his primary job functions, Sean trains agents who are new to this industry. He is a Las Vegas native and an alumnus of the University of Nevada Las Vegas, with a degree in Business Management. He is the proud father of 3 young children, and he is happily married to his best friend, Angie.

---

Isabel

Isabel Ulep has nearly five years of account management experience in the insurance industry, over half of which have been spent with Cornerstone Benefits & Insurance. She strives to provide each client with exceptional levels of expertise. Isabel was born in Hawaii, lived in Europe, and attended college in Virginia.

---

Brandon

Brandon specializes in assisting individuals and families with their health insurance needs. Always putting the clients’ needs first is Brandon’s top priority.  Originally from Brooklyn NY Brandon has lived in Las Vegas for the past 15 years serving in the financial services industry.  He’s a husband and proud father of three. His family enjoys outdoor activities such as boating, hiking and fishing.

---

Bo

Bo has been in the insurance/investment industry for over 19 years. He attended UNLV and earned dual degrees with honors in Real Estate and Finance. Bo obtained his master’s in mathematics from WGU. Licensed since 2002, he has helped his clients reach their financial and insurance goals. He is originally from Taiwan but has lived in Las Vegas since the 80's and calls Las Vegas his "home". He has been happily married for over 14 years and has 3 amazing girls, and prides himself on building long term relationships with his clients.

---

Mel

Mel has been in the insurance/investment industry for over 25 years. This experience and knowledge coupled with his honesty and integrity gives him the ability to serve his clients at a much higher level. Mel strives to educate his clients about the products and plans available so his clients can make a fully informed decision as to what is going to work best for them. Mel has been married to his high school sweetheart for over 40 years.  They are blessed with 3 children and 4 grandchildren. 

---

Mich

Michele "Mich" Harkiewicz is the Administrative Assistant for Cornerstone Benefits.  She has been working with Sean and Lauren for several years and would rather be nowhere else ... claims it's her "happy place!"  Originally from Michigan, she is a graduate of Jackson University in Applied Science.  Michele has been married for 41 years. She and her husband are the proud parents of 3 beautiful children and 6 grandchildren!

---

Our Administrative Team

Michele Harkiewicz

Phone: (702) 242-9000
admin@cornerstoneinsnv.com

Olivia Ojeda

Phone: (702) 242-9000
OliviaO@cornerstoneinsnv.com

Angela Retke

Phone: (702) 242-9000
AngieR@cornerstoneinsnv.com

(702) 242-9000
8919 West Sahara Avenue
​Suite 150
Las Vegas, NV 89117​
Click Here to Email Us