John Mahan

John Mahan

  •   5   (38 reviews)

About John

John Mahan has deep roots on Cape Cod, spending summers here growing up before making it his permanent home in 1996. A Realtor since 2002, he is a consistent top-producing agent known for his local expertise, approachable style, and dedication to helping clients successfully buy and sell on the Cape.

John's reviews

  5  
John has 38 reviewsacross 13 different locations, showing 6.
Review John
1 day ago
Rave review

Rave reviews for John Mahan. We recently sold a home that had been in the family our entire lives. John was our “therapist” as well as our realtor and handled all aspects of the sale and prep of the house with sensitivity, experience and fabulous recommendations of people to help with all the situations that needed to be addressed. I highly recommend John, it was a very simple and nondramatic event. I don’t know how he managed it but we are also thrilled with the family that bought the house.

5 days ago
He went above and beyond! He

He was there from start to finish through out the whole process answering any and every questions that came up.

3 months ago
Excellent communicator

John went above and beyond for us every step of the way. His communication was outstanding, attention to detail incredible, and he always made time for our questions and concerns. His knowledge and contacts in the area were such a benefit as he answered so many questions not connected to the sale. An absolute pleasure to work with and I have no hesitation recommending him in the future

4 months ago
A step above the rest

We've worked with our fair share of realtors in the past. John has helped us with more than one purchase, and each time we were successful because of the guidance and advice we received from him. John knows the Cape well, and if we purchase another property in the future it will certainly happen again with John's help.

7 months ago
Experienced, knowledgeable and engaging Agent!

John came highly recommended by a close friend, and he exceeded every expectation in helping us find our home in Harwich. His deep knowledge of the Harwich and Chatham markets, combined with his warm, engaging style, made the entire process feel seamless—even in a highly competitive environment. We navigated multiple offers before landing our Cape home, and John’s guidance, strategy, and steady expertise were invaluable at every step. He took the time to truly understand our priorities and consistently presented thoughtful, well‑matched options. We couldn’t be happier with the experience and would enthusiastically recommend John to anyone searching for a home on the Cape. He’s outstanding.

7 months ago
Sale of Home

John went above and beyond in all aspects of the selling proces! John had the entire plan for the staging, pictures, listing in place so that when we were ready, it went smoothly and without a hitch! We had offers 3 days after the house was listed! John's communication, professionalism, patience and support is exceptional, really a 10 star rating.

Show all 38 reviews

John's properties

John has 3 properties for sale and sold 15 properties in the last 12 months, showing 4, sorted by most recent activity

SoldAug 3, 2026
$669,000
15 Quail Nest Run
East Harwich MA 02645
3
2
6
Single-Family
Listing courtesy of Keller Williams Realty - Cape Cod and the Islands
SoldJul 30, 2026
$1,810,000
53 Pleasant Street
Harwich Port MA 02646
4
2
9
Single-Family
Listing courtesy of Keller Williams Realty - Cape Cod and the Islands and Kinlin Grover Compass
Pending
$1,695,000
77 Long Rd
Harwich Center MA 02645
3
4
8
Single-Family
Listing courtesy of Keller Williams Realty - Cape Cod and the Islands
Pending
$479,900
2/231 Route 28
Northwest Harwich MA 02671
2
2
1
Condo
Listing courtesy of Keller Williams Realty - Cape Cod and the Islands
Show all 18 properties
Email
© 2026 RateMyAgent