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Client Experience Ratings

Rating system for real estate agents and criteria - Learn more
28 Surveys

Whispering Woods TRL

Surveyed on Mar 2, 2026
Represented the Seller
Represented the Seller
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Seller's Comment

Del p
Posted on Mar 2, 2026

“Mark truly knows Texas real estate like nobody else. His competency, intention towards his clients and his desire to exceed our goals is unmatched - we won't use any other broker for our real estate transactions. ”

Missouri ST

Surveyed 3 months ago
Represented the Buyer
Represented the Buyer
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Buyer's Comment

Claudia Z
Posted on Dec 18, 2025

“Mark provided excellent service and timely communication. His responsiveness and punctuality was my favorite part of working with him. In addition, he was knowledgeable and helped make our first time home buying experience a smooth one.”

Thompson RD

Surveyed 10 months ago
Represented the Seller
Represented the Seller
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Seller's Comment

Marvin H
Posted on May 26, 2025

“Our realtor was very professional and communicated with us frequently keeping us informed of the selling of our house. I would highly refer him to anyone.”

Bamore RD

Surveyed 1 year ago
Represented the Seller
Represented the Seller
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Seller's Comment

Sarah G
Posted on Feb 24, 2025

“Mark went over and above throughout the entire process and it was quite lengthy. He stayed in contact with everyone constantly.”

Dawn LN

Surveyed 1 year ago
Represented the Seller
Represented the Seller
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Seller's Comment

Claire R
Posted on Dec 10, 2024

“Mark met all my needs for a realtor. He took me from the first day to the last with expertise but also with attention to my needs and questions. He really went above and beyond to help me get my property ready for sale and he followed through to the signing. I would work with him again - and will recommend his services to others.”

Yupon Branch LN

Surveyed 1 year ago
Represented the Buyer
Represented the Buyer
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Buyer's Comment

Del P
Posted on Oct 15, 2024

“Mark is THE land man if you are looking for farm, ranch or recreational property. We've used him as our broker multiple times and won't use anyone else to represent us. If you're looking for someone who is knowledgeable and is YOUR advocate, call him - he listens and wants to exceed your real estate transaction goals ”

Cherry Tree LN

Surveyed 1 year ago
Represented the Buyer
Represented the Buyer
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Buyer's Comment

Del P
Posted on Sep 11, 2024

“Commercial or residential, we always use Mark for our transactions. He's knowledgeable, thorough, prompt, responsive, and a true advocate, and we won't use anyone else to represent us in real estate transactions. I can't recommend him highly enough.”

Northridge DR

Surveyed 1 year ago
Represented the Seller
Represented the Seller
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Seller's Comment

Del P
Posted on Sep 5, 2024

“Mark the LAND MAN knows Texas like no other We've repeatedly used him to represent us in multiple transactions, and he's the BEST ”

TBD Cherry Tree Lane LN

Surveyed 1 year ago
Represented the Buyer
Represented the Buyer
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Buyer's Comment

Del p
Posted on Sep 5, 2024

“We are repeat clients of Mark's, and we cannot express how thorough, competent and determined he is to work on our behalf. We trust him wholeheartedly and won't use anyone else to represent us. And as an added bonus, he's an Aggie and a Texas boy through and through ”

Live Oak

Surveyed 1 year ago
Represented the Buyer
Represented the Buyer
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Buyer's Comment

Del P
Posted on May 20, 2024

“There is no agent who is more competent, communicative and knowledgeable than Mark Kellner. We ve used him for multiple purchases and won t use anyone else. Choose Mark for your next real estate venture - your expectations will be blown away ”

Nails RD

Surveyed 2 years ago
Represented the Seller
Represented the Seller
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Seller's Comment

Stephen N
Posted on Oct 19, 2023

“Mark provided excellent service. He worked very hard and diligently to help make our sale become a reality. ”

County Road 522

Surveyed 2 years ago
Represented the Seller
Represented the Seller
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Seller's Comment

Ricky Z
Posted on Jul 7, 2023

“Mark did an excellent job in completing sale of property.”

Kansas Street

Surveyed 3 years ago
Represented the Seller
Represented the Seller
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Houston Street

Surveyed 3 years ago
Represented the Seller
Represented the Seller
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Seller's Comment

Merry S
Posted on Apr 11, 2023

“Mark was very helpful and went above and beyond in helping me ”

Pine Lane

Surveyed 3 years ago
Represented the Seller
Represented the Seller
5/5
Start FullStart FullStart FullStart FullStart Full
Competency
5/5
Knowledge
5/5
Communication
5/5
Experience
5/5

Seller's Comment

Del p
Posted on Aug 11, 2022

“We've worked with Mark on multiple transactions, both buying and selling, and there is no broker/agent more diligent, competent and knowledgeable in the Houston market and beyond. Having the right advocate in a transaction cannot be overstated, and I highly recommend contacting Mark Kellner at Ward Kellner Properties for ALL of your real estate needs.”

Overall Rating
5/5
Rating based on 28 completed surveys.
Start FullStart FullStart FullStart FullStart Full
5 / 5
Start FullStart FullStart FullStart FullStart Full
Competency
5 / 5
Start FullStart FullStart FullStart FullStart Full
Market Knowledge
5 / 5
Start FullStart FullStart FullStart FullStart Full
Communication
5 / 5
Start FullStart FullStart FullStart FullStart Full
Experience