Our Team

we work for you

our amazing team

With over 30 years of combined Customer Service, Business Development, Real Estate, Marketing, and Software Development experience,Our team at OHGuests is well-equipped to help our clients and investors from all walks of life. Just let us know what you need from us and our team will get to work!

Coming Soon


Mark James

Chief Technical Officer

Mark graduated from the University of Pittsburgh with a B.S. in Electrical Engineering and minor in Computer Science in 2014 where he worked on a multitude of projects with an emphasis on user security. He then worked for a large tech company as a design engineer in Silicon Valley before becoming the C.T.O and software developer of OHGuests in 2017. He brings an expertise in security systems, programming, and database management and helped OHGuests innovate and be on the forefront of technology in the industry.

Mark is a very driven individual that can always find the solution to complex problems and is continually able to implement new technology to the OHGuests platform.

In Marks’ free time he is an avid hockey fan and loves watching the San Jose Sharks play and going to games when possible.


Raquel Garcia

Chief Operating Officer

Raquel has been an integral part of the OHGuests Executive Management Team from the very beginning. As the Chief Operating Officer she brings a wealth of knowledge to a fast growing start-up. Raquel has assisted the company’s growth from a conceptual design to a full production SaaS/Cloud based software platform with multiple clients. As the C.O.O., her passion is working with a team collaborating innovative first to the market ideas.

She enjoys spending time with family, hiking, swimming and baking. Raquel holds a Doctorate Degree and has completed her studies at UCLA and UC Davis.


Giorgio Palmisano


Giorgio brings to OHGuests his extensive experience leading various teams in diverse markets as an accomplished business development specialist working closely with management to increase productivity and revenue.

Strong interpersonal skills, commitment to excellence and team building contribute to his ability in developing and managing sales teams. Giorgio has a successful history of identifying market opportunities, product design, development, and on time, profitable product launches.

He is well respected for his ability to listen, communicate, negotiating skills and willingness to serve.

Giorgio is also an avid cyclist, gardener and cook.

Allen is in charge of anything marketing, design, and the OHGuests website. He’s been working on websites and graphics since he was in high school (18 years), and has been working in the real estate industry for over 6+ years.

Allen has always had a passion for technology, and loves watching movies with his family. He’s also a huge Marvel movie nerd.

Allen also loves to foster puppies.


Elijah Guadarrama


Elijah is from Silicon Valley now living in Austin, TX, the music capital of the world. He enjoys working in both tech and music. His favorite BBQ restaurant in Austin is Valentina’s Tex Mex BBQ.


Carolyn Fu


Carolyn grew up in the Bay Area and graduated from UC Davis in 2015. She has a background working at a few different tech companies both in the Silicon Valley and in the Sacramento area where she now resides. She has only begun working in real estate technology within the past year, but she is always willing to listen so that she can learn more about the industry and come from a place of knowledge rather than a place of ignorance.

Carolyn’s biggest accomplishment is playing all of BioShock Infinite in one sitting which took around 15 hours. It might not sound like much, but it does show the insane amount of dedication she is willing to give something if she really believes that it’s great. That dedication carries over to all other aspects of her life including her work.

When she’s not working or playing video games, you can catch Carolyn listening to sad indie rock (okay, lately it’s been mostly Taylor Swift) at the gym, stressing out about her fantasy football team, or watching hockey.