RESoft Enterprise Story

The RESoft story

A letter from RESoft Founder and CEO, Peter Sereny, MD, F.I.M.I.


I’m excited to share with you the story of RESoft. It’s a story of dedication, working smart, and solving a problem … so that we could improve efficiency, productivity, and profitability for hard-working real estate brokers, managers, and real estate agents.

As with many successful products, our story starts with looking for a better way, not finding one, and ultimately creating the solution we sought.

In my previous career, I founded two successful software companies, HealthIS and Amkai. Each of them dominated its market segment. After I sold them (in 2002 and 2014, respectively), I was ready for a new challenge

Two of my three sons were in the real estate brokerage business, and together, we established Brick&Mortar LLC, a brokerage in New York City.

I obtained a broker’s license, and quickly realized we needed software to manage our business and make the daily lives of our agents easier.

Of course, having developed two other software solutions, I figured we’d be able to find something suitable … something comprehensive designed to serve the needs of real estate professionals.

I was wrong!

We soon discovered there was a huge vacuum. Yes, there were a few solutions available ranging from poor to decent, but they were all limited.

There was no comprehensive, state-of-the-art software capable of handling all aspects of a real estate professional’s daily duties. Piecing together several different applications negated any time saved by using them.

As time passed, we started losing agents to companies with “better software tools.” To add insult to injury, some of our agents subscribed to software owned by our competitors; our hard work developing these agents strengthened our competitors while giving them access to our data. We knew there had to be a better way.

So we created it!

I recruited a fantastic team of software developers, scientists, and technologists, and founded RESoft LLC. We identified seven functional areas in which a software solution could improve the daily productivity of real estate professionals. We named the collection of these utilities RESoft Enterprise.
Our mantra: “Good is not good enough … only great is.”
Now, after four years of dedicated, smart, and hard work, we’re ready to serve you.

RESoft Enterprise is ready to serve you

It will maximize your efficiency, productivity and profitability. It will make your life easier while producing amazing results.

Our Mission
Our mission
  • To deliver an all inclusive real estate brokerage software solution.
  • To refuse to accept “good enough”, but deliver only GREAT to our clients.
Our Promise
Our promise
  • To deliver the best that technology can offer to make our clients’ work easier, more efficient, and more profitable.
  • To continually listen to our clients’ evolving requirements and needs.

The Management

Peter Sereny

Peter Sereny M.D.,F.L.M.I.

CEO, Chairman

Peter is the Founder of RESoft. He has a distinguished career as a computer engineer and physician. Peter is considered as a leader in the software industry having founded two highly successful software companies, HealthIS and Amkai, both achieved market segment dominance. His single minded dedication to RESoft is felt throughout the organization.

Zsolt Nagy

Zsolt Nagy Ph.D.

Senior VP, CTO, Development Manager

Having taught computer system technology at a university, and having managed large interconnected/interacting systems, I’ll contribute my experience to ensure that our systems keep up with technology and security. I also have an active role in ensuring that our software architecture is robust, providing state of the art mobile experience.

Derek Merman

Derek Merman

VP Client Services

As VP of Client Services I am responsible for our clients’ experience, ensuring best outcomes through successful adoption and use of RESoft Enterprise. Prior to joining RESoft, I worked in real estate data mining and project management. My goal is to listen to our clients to ensure that their experience reflects the utmost standards of service and quality.

Tamas Gamsz

Tamas Gamsz

VP Development

Technology is evolving in a rapid pace. My goal is to ensure that my Team implements those advances that will positively impact the experience of our users. We invest equal effort to ensure safe, reliable, and easy operations. We seek user suggestions to constantly improve RESoft Enterprise. We never rest on our laurels, but strive to improve every day.

Diana Toledo

Diana Toledo

VP Mobile Systems

As manager of mobile services and communications, I strive to keep up with new and evolving technologies, so that we can deliver the easiest to use, most seamless software possible. With accelerated move to mobile devices our solution has to have broad functionality, yet easily manageable on various devices.

Jeno Haraszti

Jeno Haraszti

VP Data Systems

As Vice President of Data Systems I am responsible for the acquisition, management, transformation, storage and effective use of data, including data-mining, reporting and AI. RESoft Enterprise’s foundation, its database solutions must operate reliably, meet performance KPIs, and provide comprehensive data to meet and exceed our clients’ needs.

Aron Sereny

Aron Sereny Ph.D.

Senior VP

Aron cofounded HealthIS with Peter, and was its CTO. The success of HealthIS, and its market dominance was in a good measure the result of Aron’s leadership as CTO. Subsequently Aron joined Amkai as its CTO. He is a legendary software project management and development professional. Aron is a Ph.D. Engineering graduate of Columbia University.

Zoltan Ladanyi

Zoltan Ladanyi


As Vice President and senior designer, I’m responsible for the look and feel of RESoft Enterprise’s online and mobile presentation. My mission is to ensure that our users have a great experience by introducing the latest technologies that make the interface intuitive and easy to use. I always keep in mind our motto, “good is not good enough… “.

Rolan Sereny

Rolan Sereny

VP, end-user R&D

Rolan is a tenured, highly successful Broker with many years of experience in the New York and Florida markets. He is the Co - Founder of Brick&Mortar LLC, a boutique NYC Brokerage. He is also the founder of the S&S Team. He contributes his vast practical knowledge and experience to the development, enhancement, and finetuning of the software.

Please call us if you have any questions, or would like a demonstration. We’d love to show you what RESoft Enterprise can do for you and your agents!

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