Mike Castellano Real Estate Agent

Michael Castellano, Principal Broker


Local entrepreneur Michael Castellano founded Gilcrest Properties in 2012. Michael has over 15 years of well-rounded real estate experience with a background in mortgage origination and title work.  Prior to real estate, Michael graduated the Culinary Institute of America with high honors and cooked for Presidents, rock stars and everyone in between.

A native to Long Island, NY, Michael currently holds a real estate broker's license in Massachusetts and New York State. He has homes in East Dennis, MA & Stuyvesant Falls, NY.

Judy Gregory, Associate Real Estate Broker

Judy Gregory, Associate Broker


Judy was born and raised in Columbia County and this is where her roots are.  She absolutely loves the area.  Judy is not someone who gives up easily. Whether you are looking for a tiny parcel of land or a large homestead, you will have her undivided attention.  

Judy covers a lot of area in her searches for the perfect home or the perfect buyer.  Anyone who knows her knows that she LOVES to shop, so why not let her do the work for you?

Larry Gregory, Real Estate Agent

Larry Gregory, Licensed Salesperson


Larry has been a Columbia County resident his entire life and knows the area well.  He worked many years in Restaurant Management, Training, Human Resources and most recently as a Safety Director. Larry holds an Accounting degree and current Professional in Human Resources (PHR) certification. From 2009-2015, Larry volunteered as an Income Tax Preparer as part of the VITA program at Columbia Opportunities.  To say he has a passion for helping people would be an understatement.

Whether you are buying, selling or just have questions, Larry is here to help. Home buying is thought to be one of the most stressful times in one’s life, and he is here to alleviate that stress.  Real estate is what Larry does and does well.

Qiu Qin “Linda,” Real Estate Agent

Qiu Qin "Linda" Zheng, Licensed Salesperson


Linda lives in Valatie with her husband and two boys. Originally from New York City, she comes from a family with a long history in the hospitality/restaurant business.  A "go getter" and "self-starter" Linda has always been fascinated by real estate from an early age.  She looks forward to assisting her clients in buying or selling their homes with much enthusiasm.

Karen Jade Ng, Real Estate Agent

Karen Jade Ng, Licensed Salesperson


Jade epitomizes dedication, energy and hard work, and creative service in every detail of your real estate transaction. Jade grew up in a very small town in Upstate New York and took advantage of all the beauty of the seasons. As a trainer, Ironman triathlete and inventor of fitness products, she listens closely to the specific needs of each individual and has motivated hundreds of thousands of children and adults to live full and healthy lives. Her compassion and ambition is driven by listening to others needs and finding a solution. Her marriage brought her to Long Island for some years but her love of the mountains and lakes, open sky and fresh air inspired her to commit to making a move and helping others do the same.

Sandy Milano, Cape Cod Real Estate Agent

Sandy Milano, Licensed Salesperson


Sandy has over a decade of real estate experience in both Upstate NY and Cape Cod.  Her commitment to her client’s success has brought well over 500 successfully closed real estate transactions.  

Sandy is native to NY and has been a full time Cape Cod resident for over 30 years.  She currently holds her real estate sales license in MA.  Whether you are looking for a full time home or a weekend getaway - needing to sell your home or simply want to add an investment property to your portfolio, Sandy is a professional who will work tirelessly to make your goals her own.  


Tracy Fox Koontz, Licensed Salesperson


Originally from Massachusetts, Tracy has made Kinderhook her hometown for the last twelve years. She has a degree in business administration and has spent the last 12 years working as a successful sales representative for a national merchandising company.  She is known for her outstanding client service, timely communication and attention to detail. Using these same skills, she will be able to assist you throughout your home buying experience, from start to finish! In her free time, Tracy enjoys kayaking on the lake and hiking the Appalachian Trail.

David Usher, Real Estate Agent

David Usher, Licensed Salesperson


Dave was born and raised in NY's Capital Region and has called Columbia County home for the last 24 years.  Dave graduated from Union College with Engineering/Computer Science degrees and worked in NY technology industries for seventeen years. Prior to launching his real estate career, Dave traveled all over the country (and internationally) working with some of the largest, most prestigious universities installing software and training them how to use the system to manage research.  Despite all of the wonderful places he has seen in his travels, there is no where he would rather live than right here in Upstate NY.


Denise Guerrero, Licensed Salesperson


Denise managed a busy real estate office and later worked in the corporate real estate division for a large company in Stamford, CT, where she was born. She completed her RE Appraisal education requirements and then relocated to Valatie in 2003, where she made her home with her three children. She worked as an appraiser for a short time before she became a licensed salesperson in 2005. She accepted a civil service administrative position at the Martin Van Buren National Historic Site, located in Kinderhook, where she worked for seven years. Denise is excited to return to the Real Estate profession! She enjoys the possibilities and uniqueness of real estate opportunities and truly enjoys working with clients and on projects to see them through.

Brigid O’Brien, Real Estate Agent

Brigid O’Brien, Licensed Salesperson


Brigid’s formula for success is not complicated - her clients come first!   Whether buying or selling, you will be guided every step of the way with seamless communication. Licensed since 2009, she is a diligent and dependable "people person" who will make the transaction process a rewarding, enjoyable experience.