Sandi Weldon

“I have to rave about William Krooss-Tadas and Christina Pensa from Keller Williams! I am a California resident who spent one week in NYC planning to shop around for a property. One week is not enough time however they navigated some tricky problems in finding me the most perfect one bedroom apartment on the Upper West Side from long distance....which is NOT easy. Bill got me a great deal on an amazing property and both worked very hard in getting through escrow to close in record time. They are incredibly capable, informed, understanding, patient and held my hand the entire way. They were both there whenever I needed them, answering phone calls, emails and questions (no matter how trivial or how uninformed I was of the process of purchasing in NYC). I asked A LOT of questions and they were both there to answer them with knowledgeable information. They also have many competent people working with them every step of the way...loan officers, attorneys etc. They both put me first and I felt they always had my best interest at heart. I plan to use Keller Williams to find another place in one year and hope they are both available. I would highly recommend both of them.”

Tatyana Gimein

“Mr. Krooss-Tadas was my real estate agent in selling my old coop apartment and finding me a new one in Manhattan. Throughout the whole complicated process, he has shown excellent understanding of my needs and preferences. He was determined to find me the best deal, and made sure that I was satisfied with the result 100%. He was patient, personable, and able to deal with disagreements and client''s temper tantrums. Mr. Krooss-Tadas was very responsive to my concerns and was available to discuss them at any time, sometimes late at night or early in the morning. He provided assistance in negotiations with real estate attorneys and banks. Mr. Krooss-Tadas has deep knowledge of real estate market and process. I highly recommend Mr. Krooss-Tadas to anybody who is on a market for selling their home or looking for a new one. With Mr. Krooss-Tadas you will be in good hands.”

Anney Norton

“William is an excellent agent who really knows the market well. He is a great mentor and someone who you would want as your agent for every real estate decision you make!”

V. Moyo

“I worked with William as I looked for my first apartment in NYC. The process was intimidating at first, but as William sent us more and more information, and promptly answered all of our questions, everything started falling into place. He listened to all of the things my roommate and I were looking for (i.e. Within budget, within a certain commute time, in a safe area, etc.) Because he had searched though everything for us, we found an apartment in less than a week after first meeting William. Also, he was very accommodating as I was not present in NYC during the whole search.I would HIGHLY recommend William”

Jin Yang

“Review for William Krooss-Tadas: Nothing but praise for this agent. Found a rental with my asks within my budget. Always prompt responses to my many questions”

Kelly Hall

“William Krooss-Tadas was incredible. We are a young family relocating to the city and needed a 3 bed/2 bath apartment on the upper west side near my kids school. William worked within both our budget requirements as well as our needs in a home and delivered a perfect apartment for us within walking distance from my kids school, central park, and many other great attractions. Most importantly, William is a complete joy to work with. He was always accessible, a strong communicator, and overall just a great guy. He offered feedback and advice throughout the entire process and made us feel comfortable and welcome. I truly would rate William 6 stars, if possible! He is such a gem - If you are looking for a broker, your search is over!”

Jenny Ma

“I worked with William Krooss-Tadas from Weichert to find an apartment in Manhattan. What I liked about working with William: 1. Being new to the city, William was very patient and great and explaining how to best find an apartment in the city. 2. He was very concientious about my budget and worked hard to ensure that I found something that I would live comfortably in. At one point he was the one reminding me what my max budget was when I was tempted to stretch it! 3. He was very easy to communicate with and very accessible. Very prompt with his responses. 4. I had a few issues with my apartment after I had moved in and William didn''t leave me hanging. He worked diligently with the other broker to ensure that everything got fixed and he was constantly checking up on me to see how things were. He genuinely cares about his clients and that is a lot more than I had expected.”

Eric Perez

“Great service! William Krooss-Tadas was very professional and was a great help. I told William what I was looking for and he was able to show me multiple places very quickly. I highly recommend William to anyone looking to move to NYC! Thanks William!”

Rachelle Loyear

“William Krooss-Tadas was amazing. Moving to New York from North Carolina made it very difficult to look for an apartment ourselves in the fast moving NYC apartment market. William worked with us on a three day whirlwind trip to find us a great place in our preferred area and price range. We were also quite troublesome with our requirements due to having an aging dog that not only needed a pet friendly place, but one without more than one flight of stairs. Did I mention it was one of the worst weeks of winter? Slogging through the snow an sleet to show us the available options? William helped us find a PERFECT basement apartment, dog friendly, with a small YARD of all things for the dog! Who finds a yard in Manhattan? Also was a great help in negotiating the world of leases for someone who hasn''t been a renter for 15 years an never in NYC. I had heard so many terrible things about using brokers... Mostly on Yelp! So here''s a great review. Call Weichert, you will be happy you did!”

Jihea Park

“Looks like William is the star based on other yelpers, and I''m jumping on the William bandwagon! I met him randomly during an open house and he''s helped me throughout the entire process (and it took about 4 months). Very friendly, very patient, easily accessible and very accommodating. Highly recommended!”

Lenny Lam

“Our family had gotten bigger and I''ve had my studio on and off the market for a few years. It was at the point where it was becoming the "un-sellable" home. Brokers have come and gone. All the previous realtors I have had would rather concentrate on big sales and always left us in the back burner, no open houses or any type of foot traffic. When I was introduced to William. He immediately went into action and pushed through. Always kept us up to date and made sure we had some foot traffic. Always made the time to meet with us or had his phone available for any questions or advise. (extra points after I found out he got married during the process and still helped us) Within 3 months he got our apartment sold and already had suggestions on some prospects for a bigger place within our budget. Understanding of our situation. Our partnership did not end with selling my studio as he is now in the process of a purchase of a 2 BR. I highly recommend William, you would not get a nicer and harder working realtor than him.”

Josh Kramer-Eisenbud

“William is incredibly professional - he listens to your wishlist and spends the time to carefully choose options that fit within your means. His mathematical and analytical approach is invaluable, a skill-set you''re unlikely to find in other brokers.”

Tim Eng

“It was great working with William (Krooss-Tadas) in selling my place. He''s friendly yet professional and always available. One thing I really look for in someone I''m working with is responsiveness and William is that and more. He was always available to provide guidance and advice when needed. Not only that, he was very proactive about keeping me up to date on everything. Highly recommended!”

Patrice Dixon

“We began looking for a coop to purchase at the end of 2013 as we were getting married in 2014. My husband and I were introduced to William and he took the time to explain the process to us before we began. We saw properties in our price range and had even signed a contract. Unfortunately, we had some issues on our end resulting in us loosing the property. Now we''re back again with William looking for our first family home. Thanks to him we''re well on our way with contracts out. Anyone who got the chance to work with William will be glad they did, not only is he professional but he''s easy to talk to and gets the job done.”

Michael Ring

“Working with William was a pleasure. He is quick with his response and very thorough. The apartment was rented soon after hitting the market! Good luck”

Devon Carriere

“I was referred to Bill by a co-worker who also practices real estate...Bill was awesome! He made finding an apartment in New York a breeze! He was knowledgeable, friendly, and always responded quickly whenever I had questions. I highly recommend him for any real estate needs.”

Adam Hess

“Bill is a great broker to work with. Extremely competent, hard working and an overall good person. Very knowledgeable and super responsive. I couldn’t recommend him highly enough! Whether you’re new to the real estate game or looking for a new broker, give him a call. I went through several agents before landing on Bill and I’m grateful that I did. He found my perfect apartment and helped guide me every step of the way”