Brian Zack

Agent

302.893.3508

Bio

I have been in Real Estate for over a decade. Not only am I consistently at the top of my brokerage and Maryland’s list of agents, I have also purchased, renovated, rented and sold my own properties throughout the state. This personal experience along with my background in IT and customer service helps to ensure success for you as a homebuyer, seller, renter or investor.

As the team leader for Diamond Home Group of Cummings & Co Realtors, I have led our team to close $50m+ in sales over the last 3 years as we continue to grow and add services to our portfolio to differentiate ourselves from local competition. We have been recognized as Staging Experts, Seller Specialists, Accredited Buyer Representatives, marketing professionals and are members of the Million Dollar Real Estate Association of Harford County and Baltimore Real Producers (the top 4% of Realtors out of the 12,000+ in the Central Maryland area!)

Prior to Real Estate, I spent many years in the technology and hospitality industries – honing skills that serve me today such as marketing, negotiation, communication and superior attention to detail. Skills that ensure success for our clients time and time again.

Our Team:
When selecting a diamond, you should look for the 4 C’s (Clarity, Cut, Color and Carat Weight.) At the Diamond Home Group, clients who select us enjoy the following qualities from our agents:

* CLARITY – Like a diamond, we want the process to be crystal clear. We are with you every step of the way from start to settlement.
* COMMUNICATION – Call, text or email us at any time. Proactive communication from us to you is key.
* CAMARADERIE – You’re not only getting a 5-star Realtor, you’re getting a new friend.
* COMMUNITY – We love where we live and hope you do too. Get to know your new neighbors at our frequent client appreciation or charity events.

My active listings

4 Beds 4 Baths 4,756 Sqft

$615,000

221 SMARTY JONES TERRACE

HAVRE DE GRACE, MD

3 Beds 3 Baths 3,620 Sqft

$625,000

236 SMARTY JONES TERRACE

HAVRE DE GRACE, MD

3 Beds 3 Baths 3,298 Sqft

$650,000

301 TECUMSEH WAY

HAVRE DE GRACE, MD

5 Beds 4 Baths 3,058 Sqft

$595,000

657 PEACE CHANCE DRIVE

HAVRE DE GRACE, MD

4 Beds 2 Baths 3,614 Sqft

$825,000

531 RISEN STAR COURT

HAVRE DE GRACE, MD

5 Beds 4 Baths 4,602 Sqft

$947,573

320 SUNNYS HALO DR

HAVRE DE GRACE, MD

3 Beds 2 Baths 2,300 Sqft

$837,000

416 BOLD VENTURE CT

HAVRE DE GRACE, MD

2 Beds 2 Baths 1,767 Sqft

$602,990

300 FRIAR ROCK CIRCLE

HAVRE DE GRACE, MD

3 Beds 3 Baths 2,685 Sqft

$624,990

302 FRIAR ROCK CIRCLE

HAVRE DE GRACE, MD

4 Beds 3 Baths 3,298 Sqft

Reviews

Highly likely to recommend

Local knowledge
Process expertise
Responsiveness
Negotiation skills

“Brian has been my agent for 2 purchases and 1 sale. He has a ton of experience and it really helps when you are navigating something unexpected or complicated during the process. He is communicative and does a great job will all aspects of the home buying and selling process.”

Client

Highly likely to recommend

Local knowledge
Process expertise
Responsiveness
Negotiation skills

“Looking for a Realtor, then Brian is the one for you!! He sold our house in 2020. When this move came along in 2026, he assisted us for over 18 months in finding the right house for us. He is professional, friendly, responsive, and always looking out for his client. He is extremely knowledgeable about the location we chose for our house. He goes the extra mile to ensure the client is happy with everything. He provided recommendations for contractors in the area, to help make our transition smooth. So happy we chose him. I highly recommend Brian Zack!”

Client

Highly likely to recommend

Local knowledge
Process expertise
Responsiveness
Negotiation skills

“Brian went above and beyond in the sale of our property. We were so impressed with his marketing expertise and collaborations with the videographer and photographer to showcase the uniqueness of our farm, which ultimately lead to multiple offers. His attention to detail and great communication really put us at ease throughout the process. Highly recommend!”

Client

View All Reviews

Client's Success Stories

Testimonials

"Working with Lindsay was an absolute pleasure! Lindsay expertise in the Harford County area market was evident. She is incredibly knowledgeable and professional and genuinely cares about her clients. She listened to our needs and negotiated expertly. She handled all the details, making the entire process stress-free. Good communicator and she kept us informed at all times. I wouldn't hesitate to w… Read MoreRead Less

"Jamie as well as her assistant Ms. Kim Boyle were dedicated proficient and committed to making sure that the home buying process was successful for us. They communicated well throughout the entire process and answered any and all questions we had with precision and no hesitation. Jamie Rassi and Kim Boyle made the experience a wonderful one because of the importance and kind of care they put towar… Read MoreRead Less

"I highly recommend working with Mr. Dietzen, he has earned my loyalty and trust. He has helped me in recent years with several property transactions. He is professional and extremely knowledgeable providing market insights I have not found elsewhere. Mr. Dietzen is also thorough and efficient and very responsive to my particular concerns. Even with the ups and downs of real estate investing he is … Read MoreRead Less

"Finding the perfect home is a tough process. Mr. Dietzen helped my small family move down from Pennsylvania to Maryland to buy our first home. He was supportive and patient even when things got a little rocky. Every step of the way he made sure we were not handing out signatures but that we understood what was going on. Mr. Dietzen is truly a great realtor, a knowledgeable man, and an humane perso… Read MoreRead Less

"We had and outstanding experience working with Ron Windsor. From the moment we started, his professionalism, honesty and market knowledge were evident, He guided us, my husband and I, through every step to sell our home and then find a new home. Ensuring effective communication and addressing any concerns promptly. We deeply appreciate his dedication and seamless process, making both transactions … Read MoreRead Less

"Ron was not only clear and concise with the information he provided, his tenacioisnes and energy in ensuring that we had the smoothes transition into our new home was impeccable. As a first time home buyer he made multiple aspects understandable by using "Ronisms"....aka analogies that made an unknown process comprehensive."

"Selling the home of a family member who had passed was a deeply emotional and heavy task for me. This home held over 50 years of memories, spanning generations of family celebrations. Fortunately, I was referred to Ron Windsor, an agent with Revol Real Estate Brokerage, who proved to be exceptional in every aspect. Ron not only met but exceeded my expectations. He offered valuable recommendations … Read MoreRead Less

"Nikki was amazing to work with while searching for my home! She was patient, informative, and made sure that I did not settle on something less than I wanted. I couldn't have done it without her!"

"Nikki was knowledgeable, responsive, and listened to our wants and needs. She was always professional and a great communicator. The sale went fast and the process was flawless. It was a pleasure to work with Nikki and her team."

"Nikki was our agent for our last 2 transactions on both the buying and selling side. She was super responsive anytime we wanted to see a property (often getting us a showing that same day!), and creative when it came time to put in an offer in a super competitive market. She listened to our needs and when we found “the one” she helped us land the deal. During the selling process, Nikki guided us t… Read MoreRead Less

"Jon has an incredible eye for the 'bones' of a house and a deep understanding of property potential, which was invaluable during my search. He is a fantastic communicator who stays on top of every detail... If you want a realtor in Maryland who is knowledgeable, responsive, and truly has your best interests at heart, Jon is your guy."

"Jonathan is an extremely knowledgeable & professional agent. His knowledge of multiple zip codes, as well as trending renovations and remodels, have helped me to cost effectively update several projects."

"Jonathan is the best real estate agent that I have used in my 55 year home buying experience. Great, Great, Great!!! Every one I have recommended to Jonathan says the same."

"Brian has been my agent for 2 purchases and 1 sale. He has a ton of experience and it really helps when you are navigating something unexpected or complicated during the process. He is communicative and does a great job will all aspects of the home buying and selling process."

"Looking for a Realtor, then Brian is the one for you!! He sold our house in 2020. When this move came along in 2026, he assisted us for over 18 months in finding the right house for us. He is professional, friendly, responsive, and always looking out for his client. He is extremely knowledgeable about the location we chose for our house. He goes the extra mile to ensure the client is happy with ev… Read MoreRead Less

"Brian went above and beyond in the sale of our property. We were so impressed with his marketing expertise and collaborations with the videographer and photographer to showcase the uniqueness of our farm, which ultimately lead to multiple offers. His attention to detail and great communication really put us at ease throughout the process. Highly recommend!"

"★★★★★ Outstanding Realtor – Highly Recommended! Working with Bobbie Morrocco was one of the best decisions we made. From the very beginning, Bobbie's knowledge, professionalism, and attention to detail gave us complete confidence that we were in the best hands. She took the time to explain every step of the process, answered all of our questions promptly, and always looked out for our best i… Read MoreRead Less

"We have used Bobbie for her incredible knowledge, expertise and command of the market. We trust her completely and highly recommend her."

"Bobbi is amazing. She is super knowledgeable and a fighter for her clients!"

"The best part of working with Tyler was how creative she is when it comes to putting in a competitive offer. Even though we were experienced home buyers, Tyler was able to help us learn of creative ways to get the house we wanted. She is kind and respectful and makes sure it is a solid deal you can feel good about! We absolutely love our new home."