Denise Kosterlistzky

REALTOR® | San Diego, CA

Serving Veterans and Their Families

Live To Serve. Serve To Live.

Meet Sentry Residential
Serving MilItary & Their Families

Our mission is to improve the lives of military members and their families through homeownership. We know that buying and selling real estate can feel like a battle. If you get knocked down, you need to trust that your team is there to help you stand. Though it may feel like you are under fire, when the pressure is high, we rise to the occasion...together. We know that the most daunting missions are overcome by the power of your team! At Sentry Residential, we stand shoulder to shoulder with you, providing a victorious real estate experience. Not military, not a problem. Our agents are the best in the country.

Million Dollar Marketing
At Every Price Point

Home Preparation

Your home needs to make an impression such that the snap judgments of potential buyers are favorable. During a showing, buyers will make judgments about your home as they view it through the “lens” formed in that first 15 seconds. We will put this trait of human nature to work for us.

A-to-Z checklist to ensure your home shows its best

We help you develop a strategic marketing strategy

Access to exclusive partners for staging, photo, & video

Access to our exclusive list of service providers to help ready your home for market

Recommended pre-listing inspections by trusted service providers

Military specialists who offer premium service

Professional Photography

First impressions are everything, the goal of photography is to get customers to your house. It has come a long way and now includes technology like virtual reality video, 3D Matterport, and drone photography. All of these features can be available.

Professional interior and exterior photos

Arial drone photography

Home premiere video showcase

Matterport 3D virtual tour

Virtual staging if necessary

Enhance your home tours with 360-degree Virtual Reality Photos and Videos

Digital Marketing

Today 90% of buyers start their home search online, therefore it is important to employ a robust digital marketing strategy. We ensure that everyone searching online will know your home is for sale.

Your home will be placed on the MLS and the listing will be syndicated to over 2000 home search portals such as,,

Listing will be featured on for other Military members to find

Your home will be included in popular home search mobile apps including: Homesnap, Zillow, HomeSpotter, and many more

Print Marketing

Print marketing can be a valuable part of marketing when used properly. We provide top-of-the-line print marketing options.

Sentry branded professional quality printed listing fliers to highlight the features of your home

A premium yard sign. Customized sign riders are available

Sentry branded open house signs and event fliers

What Our
Clients Say


About Denise Kosterlistzky

Welcome to my Sentry Residential Inc. personal page and Bio.

I joined Sentry Residential with a sales and listing career from other brokerages on both the East and West Coast. I am a Californian by birth but started my Real Estate career in Rutherford, New Jersey. I was previously with ERA Justin Realty and Prudential Professionals. Prior to Sentry Residential, I was with Savvy Lane Inc and Keller Williams.

Now that I am back, I have built an even bigger clientele with many more happy and loyal clients past and present. I am ready, willing, and able to help you buy or sell a home. I have a college degree and continue to return because I love learning new things. I am also a licensed EMT. I am very community-oriented with a volunteer resume of over 15 years as a coach for soccer, baseball, and track and field. I am also heavily involved with various non-profit organizations that help out the community.

I have a great understanding of people, their needs, and their desires. I am very adaptable. I work well with others, all having different personalities and needs. With my past experience as a caregiver, I have the ability to be a people person. I have a true passion and love for real estate as well as the need to help others.  My goal is to always build strong business relationships with my clients, associates and colleagues for a smooth and successful transaction.

I have lived in many different counties of our beautiful state over my lifetime and have somewhat extensive knowledge of our communities and surrounding areas. My goal is to build long-lasting relationships while providing exceptional service to my buyers, and sellers. I help my clients through the entire buying and selling process, so they can then make informed decisions. I am a mom, so I do understand the family concept.  

I am currently working with our military and various California bases to help streamline their process of buying and selling a home while saving them thousand in fees.  I also come from a purple heart military family.  

As I come from a purple heart recipient family along with retired, active-duty and members that have died serving. I understand the process of having to leave for deployments and redroot yourselves in another state or country. I want to help anyone in the military that I can, to make the process as easy and seamless as possible.

I would love to help you with your home purchase or sale of your home.  

I look forward to working with you.  Please feel free to contact me.


Areas We Cover