Justine Gamble

Summa Real Estate Group

Looking to sell your property, buy a new home, or just need some expert real estate advice?

About
I consider it a privilege to be a part of the home buying / selling process with you.

My attentive nature and attention to detail assures that I will work hard for you. I am a mom to five great teens and wife to a wonderful husband. I thrive on being busy and multitasking.

Whether you are selling or buying a home for investment purposes or a change in your needs, I am here to help you through the process, taking care of details and being a committed agent to you.

Often buying or selling a home comes at a time of change, a new job, a long distance move, empty nesting, growing family, multigenerational living, etc. This can be an overwhelming time. When it comes to buying or selling a home, your goals matter to me. I welcome the opportunity to serve you.

My team, at Summa, has an abundance of advanced marketing tools and technology to help assist you in accomplishing your goals. We work cohesively together to be the very best team for you.
Highlights *
79
Recent sales
$270K - $2.85M
Price range
$515K
Median price
8
Years experience

Recent Listings & Sales

Address Sold Date Sold Price Represented
12862 NW Creekview Dr
Portland, OR 97229
10/20/2026 $1,360,000 Seller
457 NW Yonia Ct
Hillsboro, OR 97124
9/25/2026 $465,000 Seller
11078 SW 61st Ave #5
Portland, OR 97219
9/25/2026 $349,900 Buyer
410 E. Brandon Dr
Newberg, OR 97132
9/15/2026 $650,000 Buyer
14122 SE Morning Sun Dr
Clackamas, OR 97015
8/21/2026 $532,000 Seller

Transaction History *

Seller Deals

Total Deals
41
Total Value
$24,732,575
Median Sale Price
$525,000
Price Range
$270K - $1.36M

Buyer Deals

Total Deals
38
Total Value
$23,395,521
Median Sale Price
$475,000
Price Range
$309K - $2.85M

Sales Volume Timeline

Justine Gamble’s production volume for the past 3 year period Q4 ’23 Q4 2023 (Nov 1–Dec 31, 2023) — Partial quarter: $1.5M Q1 ’24 Q1 2024 (Jan 1–Mar 31, 2024): $1.4M Q2 ’24 Q2 2024 (Apr 1–Jun 30, 2024): $2.8M Q3 ’24 Q3 2024 (Jul 1–Sep 30, 2024): $5.2M Q4 ’24 Q4 2024 (Oct 1–Dec 31, 2024): $4.5M Q1 ’25 Q1 2025 (Jan 1–Mar 31, 2025): $2.8M Q2 ’25 Q2 2025 (Apr 1–Jun 30, 2025): $3.8M Q3 ’25 Q3 2025 (Jul 1–Sep 30, 2025): $8M Q4 ’25 Q4 2025 (Oct 1–Dec 31, 2025): $4.9M Q1 ’26 Q1 2026 (Jan 1–Mar 31, 2026): $8M Q2 ’26 Q2 2026 (Apr 1–Jun 30, 2026): $915K Q3 ’26 Q3 2026 (Jul 1–Sep 30, 2026): $2.8M Q4 ’26 Q4 2026 (Oct 1–Nov 2, 2026) — Partial quarter: $1.4M Q4 2023 Nov 1–Dec 31, 2023 Partial quarter Total Sales $1.5M Q1 2024 Total Sales $1.4M Q2 2024 Total Sales $2.8M Q3 2024 Total Sales $5.2M Q4 2024 Total Sales $4.5M Q1 2025 Total Sales $2.8M Q2 2025 Total Sales $3.8M Q3 2025 Total Sales $8M Q4 2025 Total Sales $4.9M Q1 2026 Total Sales $8M Q2 2026 Total Sales $915K Q3 2026 Total Sales $2.8M Q4 2026 Oct 1–Nov 2, 2026 Partial quarter Total Sales $1.4M

Lighter, dashed segments indicate partial quarters. Totals include only dates within the displayed period.

Ratings & Reviews
4.9 (38)

sdelapazg
Mar 25, 2026

As a first-time buyer, I had no idea what was involved in buying a condo. My sister and her husband suggested that I contact Justine, as they had a great experience using her services. She helped me find the perfect condo for my needs and my money. She went above and beyond, making the real estate process smooth and easy to understand. I highly recommend her for all of your real estate needs.

Zillow Verified

ssteven262
Mar 15, 2026

I recently worked with Justine to purchase a home. Good communication is important to me. She proactively provided information I needed and was always quick to respond to my questions. When I experienced an issue getting liquid funds for my down payment and it looked like the sale could fall through, she worked with the unhappy sellers to find a workable solution. I wholeheartedly recommend Justine.

Zillow Verified

lugh317
Feb 19, 2026

We chose Justine because she knew our neighborhood very well and helped to put our home in the best condition for sale. We had to list our home during the winter holiday season. Even though this was a "slow" time of year, Justine quickly found qualified buyers with excellent offers, and we closed within weeks. Her negotiation skills were instrumental in negotiation of the final price. All along the way she helped get the best way to get our house ready for the market and sold. Anytime we had a question or concern she was responsive. I give her five stars in all criteria.

Zillow Verified

Drew Larabee
Dec 29, 2025

Justine is an absolute go-getter. As a buyer, you know that she works to understand exactly what kind of property you're looking for, and she is fighting to get you the best value for your situation.
Justine even took a moment out of her vacation to answer questions I had and to begin planning my plan of attack.
I would absolutely recommend Justine as a realtor who will guide you with excellence from your initial conversation to the day you get the keys.

Zillow Verified

sodahops
Nov 7, 2025

Justine is very professional and prepared at our first meeting. She explained everything from process to costs of her services. After touring the house, she offered suggestions regarding the preparation for sale. This is based upon what you tell her. Do you want to max the price? Or just get it sold. You must feel a level of comfort when selecting a realtor. This is a major transaction, purchase or sale she is the one I recommend and would call in the future.

Zillow Verified

Professional Info

Brokerage

Summa Real Estate Group
11830 NW Cedar Falls Dr 120
Portland, OR 97229

Licensed

Licensed REALTOR®
OR 201225740

Specialties

  • First-time buyers
  • Luxury properties
  • Relocation

Designations

  • ABR®
  • SRS

Education

Bachelor’s Degree

Top Cities *

Hillsboro

  • 18 sales past 3 years
  • 69 days on market
  • $525K median price

Portland

  • 18 sales past 3 years
  • 35 days on market
  • $450K median price

Beaverton

  • 12 sales past 3 years
  • 53 days on market
  • $480K median price

*Sales data is calculated based on transaction information available to Agent Pronto at the time of publishing and may not accurately reflect all transactions for a given agent.