A little about me

and why I love real estate

Sharon is a native Oklahoman, growing up in Tulsa with a special love for Stillwater, OK where she, her husband, and her children graduated from Oklahoma State University.

Although new to Texas, Sharon is no stranger to making a house a HOME, having just completed the whole selling/buying experience personally.  Sharon can relate to your moving transition and act accordingly to ensure that one of the most important transactions in your life will be enjoyable and exciting!  Sharon is quiet in nature but has a great sense of humor, patience, and warmth to make you feel comfortable.


"I enjoy being a buyer’s agent as I can realize your dreams of homeownership. 
I have a lifelong passion for serving others---My family, friends, and faith are the cornerstone of my life and that blends with helping others.   As a former educator, I understand and appreciate the value of being informed and engaged. 
I will listen to your needs first and then work diligently to meet your goals and exceed your expectations.  New construction is so much fun as I can propose some creative ideas and work with you!" - Sharon Sinnes, Realtor®

With Sharon, you've got a friend in the business!

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Testimonials icon

Our clients are awesome

and here is what they are saying

Highly likely to recommend

“Marian is the best! I got my dream house thanks to her help!”

Got my dream house

Highly likely to recommend

“Tammy literally did the impossible. She worked me into her schedule (with little to no notice) and was one of the nicest people I have met. In what was record time, I had signed a lease and received the keys to the townhouse my son and I will be living in. None of this would have happened if it weren’t for Tammy. I can’t recommend her enough to anyone looking to purchase or rent a home. I am so grateful and can’t tell you what the work she did means for my son and me.”

Tammy did the impossible

Highly likely to recommend

“Buying a home with Tammy was a pleasure. She handled it with grace and dignity. She genuinely cared about my needs and was very patient. She knows her business. I would recommend her to my family and friends.”

Handled with grace and dignity

Highly likely to recommend

“Working with Marian made the home-buying process easy and enjoyable. She is extremely responsive and listened carefully to us throughout the process. We never had to wait to hear back from her—she always made herself available to help. She pays very close attention to details and gave us plenty of notice about key deadlines ahead. Plus, as a bonus, her sense of humor and kindness helped keep the experience as stress-free as possible.”

Extremely responsive

Highly likely to recommend

“Thanks, Tammy! You took the time to understand what we were looking for in our new house and got EXACTLY what we were looking for. Thank you for all your time and effort. We LOVE our house!!”

Exactly what we were looking for

Highly likely to recommend

“As a first-time homebuyer who was relocating from California, I was very lucky to have Marian Porter as my real estate agent. Marian has a tremendous market and builder knowledge of the Dallas area.

Marian is a rare find- she truly cares about her clients and it feels more like a friendship. She ensured I found the right area to fit my needs, a good builder and was with me every step of the process explaining what to expect.”

...tremendous market knowledge

Highly likely to recommend

“I was Tammy’s 1st customer in 2002, buying your 1st home can be scary and it all went great! She also sold that home for us in 2006. She sold it in less than 2 weeks for our asking price. Everything went smoothly both times. I’m a repeat customer and have referred several others her way. She’s Great!!”………. Liz Orton”

Highly likely to recommend

“Marian knows! New home or preowned, she knows what’s available for her clients. She keeps up with the rapidly changing North Texas market. She can find exactly what you are looking for, she is patient and kind. Her smile and sense of humor are appreciated in what can be a life-changing event.”

Highly likely to recommend

““I was trying to sell the house my ex-husband and I had bought together, and buy one on my own at the same time. I was absolutely terrified! Tammy made the whole process so smooth and easy for me. She was available whenever I needed her and was always patient and ready to answer my questions. She knew what she was doing and there were no hold-ups because she forgot to do something or had to check with anyone else. She was able to give me sound advice and help me make major decisions. She made the experience enjoyable. I will be using her in the spring of next year and look forward to working with her again!!! Thank you, Tammy, for your dedication and hard work.” ……… Llewelyn Hamilton”

Highly likely to recommend

“Marian exceeded our expectations of a Realtor. She worked with us long distance over a period of many months prior to our relocation to the Dallas area. She knew what we wanted and took the time to preview homes prior to our visits. In the end, she helped us find the perfect home. We still feel that we can call on her as a resource and friend.

Arthur & Madeline Bullock, McKinney, TX”