Daniel Mortier (Dan) first visited Door County more than 30 years ago while growing up in Appleton, Wisconsin, though his early years began in the Chicago suburbs of Lombard and Naperville. As a teenager, Dan’s Door County visits became more frequent and eventually led to summer jobs in Fish Creek and Ephraim through his college years. He obtained a BA in political communication from The George Washington University in Washington, DC and considered a career in the political arena, but Door County and small town life beckoned.
Dan began his career in Door County real estate in 1993 and spent the next decade in a Fish Creek brokerage, where he became a Senior Sales Associate and Director of Marketing. He obtained his real estate Broker’s license in 2003 and went on to form his own company where he worked closely with a development team to create a new residential community near Sister Bay. In early 2008, Dan joined four other partners in creating the True North Partnership, where, in addition to the performance of brokerage service, he also oversees much of the day to day marketing effort.
Outside of real estate, Dan was involved with Door County’s Habitat for Humanity affiliate for nearly a decade, with over six years as a member of the Board of Directors and site selection Chair. He also spent over three years as a Supervisor on the Liberty Grove Plan Commission. During his term its members co-created the town’s Smart Growth Plan; addressing land use issues, economic development, infrastructure, and environmental concerns. Since 2012, he has served on the Sister Bay Economic Development Committee, helping to strengthen Sister Bay as the village has transformed its downtown parks, infrastructure and commercial district, building a stronger and more vibrant community.
Dan lives in the outskirts of Sister Bay and Ephraim in a farmhouse that he has spent years restoring. He enjoys working in his yard and garden (when time permits in the busy Door County summers) and spending time with his friends, family and dog, Ben. He heads out of the County a couple times a year to Marco Island, Florida, where his family has a unit in a sunny beachfront condominium.
Dan feels fortunate to continue to meet the needs of True North's customers and clients with passion and a thoughtful approach based on years of experience. “I love what I do,” he says. “There’s real satisfaction that comes from helping someone fulfill their dreams of home ownership – be it with a first-time buyer or the person achieving their goal of acquiring a Door County vacation home.”
10648 Cove Ln
Sister Bay, 54234
True North Real Estate LLC
3Bedroom(s)
4Bathroom(s)
AttachedParking(s)
45Picture(s)
2,016Sqft
Visits:106
You'll relish exceptional Sister Bay living in this three bedroom, three and a half bath home featuring a lovely professionally designed interior, customized floorplan, incredible paver terraces, and tremendous livability. Tucked away along a quiet dead end road, the Cove is an enclave of just twelve homes sharing access to iconic Pebble Beach, complete with private swim pier and kayak rack.
$1,235,000
10648 Cove Ln
Sister Bay, 54234
True North Real Estate LLC
3Bedroom(s)
4Bathroom(s)
GarageParking(s)
45Picture(s)
2,016Sqft
Visits:167
You'll relish exceptional Sister Bay living in this three bedroom, three and a half bath home featuring a lovely professionally designed interior, customized floorplan, incredible paver terraces, and tremendous livability. Tucked away along a quiet dead end road, the Cove is an enclave of just twelve homes sharing access to iconic Pebble Beach, complete with private swim pier and kayak rack.
$1,235,000
7055 Bay Shore Dr
Egg Harbor, 54209
True North Real Estate LLC
2Bedroom(s)
2Bathroom(s)
GarageParking(s)
36Picture(s)
1,286Sqft
Visits:558
Encompassing roughly 250 feet of Green Bay waterfront about a quarter mile south of Murphy Park and mere moments further to Horseshoe Bay Golf Club, this two parcel listing provides an amazing opportunity to build a beautiful new home or family compound in an exceptional location. There is a low bluff shoreline with stone steps leading down ten or so feet to the rock beach below.
$2,000,000
8101 Harbor Ln
Baileys Harbor, 54202
True North Real Estate LLC
2Bedroom(s)
2Bathroom(s)
CommonParking(s)
40Picture(s)
1,377Sqft
Visits:205
Embrace shorefront living in this beautifully updated, wonderfully kept, lower end unit in the Baileys Harbor Condominium. Sweeping westerly views over the harbor and marina provide an ideal vantage point for capturing the summer sunsets. Inside, the nearly 1400 sq.ft.
$525,000
S Appleport Ln
Sister Bay, 54234
True North Real Estate LLC
37Picture(s)
13.99Acre
Visits:773
This one-of-a-kind, approximately 14 acre wooded parcel along Lake Michigan provides an astounding 671 feet of shoreline, with a mixture of sand, shelf rock and beach rock. Accessed by a public road, the acreage offers a mix of uplands and wetland. A wetland delineation was just performed designating acres of buildable area.
$1,200,000
TBD Garrett Bay Ln
Ellison Bay, 54210
True North Real Estate LLC
16Picture(s)
4.02Acre
Visits:776
Absolutely beautiful, gently undulating, acreage full of gorgeous hardwoods. Privately situated along Garrett Bay Lane, the acreage is only a mile and a half from downtown Ellison Bay and a half mile to the Garrett Bay Town Park and Door Bluff Headlands County Park. The Clearing Folk School is right down the street as well. Garrett Bay is a picturesque area with many quality homes.
$179,900
4124 Glidden Dr
Sturgeon Bay, 54235
True North Real Estate LLC
3Bedroom(s)
3Bathroom(s)
AttachedParking(s)
71Picture(s)
3,075Sqft
Visits:1215
This spectacular, bespoke, Tielens-built home, perched on 0.85 acres of a low sand dune with 173 feet of gorgeous sand beach, is designed to impress. Custom features and quality finishes throughout include hickory flooring, Thermador and Wolf kitchen appliances, a floor to ceiling stone fireplace, tile baths with curbless showers, and zero entry living entirely on one level. With 3075 sq.ft.
$2,295,000
1815 County Rd ZZ
Sister Bay, 54234
True North Real Estate LLC
2Bathroom(s)
PavedParking(s)
25Picture(s)
5,600Sqft
Visits:1075
Imagine 5600 sq.ft. of well-maintained, heated storage/workshop space with the ability through zoning to rent/use commercially -- and under two miles from downtown Sister Bay. Light Industrial zoning provides good flexibility for how you utilize the space, though a residence is considered an accessory use.
$585,000Sold for 560,000.00 on 07/16/26
1640 Iowa St
Sturgeon Bay, 54235
True North Real Estate LLC
3Bedroom(s)
2Bathroom(s)
AttachedParking(s)
42Picture(s)
1,246Sqft
Visits:1323
Enjoy delightful, easy, one floor living in this attractive three bedroom, two bath condominium unit. Features include a freshly painted interior, newer furnace, quality window treatments and a cheery living environment with plenty of natural light. There's also an oversized, attached two stall garage with a large attic storage area (easily accessible via a flight of stairs).
$329,900
4174 Glidden Dr
Sturgeon Bay, 54235
True North Real Estate LLC
3Bedroom(s)
3Bathroom(s)
AttachedParking(s)
69Picture(s)
2,114Sqft
Visits:1595
Enjoy beautiful sunrises over the lake and yes even winter sunsets from this southwest oriented home on scenic Glidden Drive. The beautiful half acre parcel features 150 feet of meandering Lake Michigan shoreline. Extensive updates to the home include a beautifully remodeled kitchen, all fully updated baths, newer flooring throughout and many replaced windows.
$1,099,000
9152 W Meadow Rd
Baileys Harbor, 54202
True North Real Estate LLC
3Bedroom(s)
3Bathroom(s)
AttachedParking(s)
43Picture(s)
2,163Sqft
Visits:690
Tasteful, thoughtfully designed and like-new, this one level home is a breath of fresh air. Enjoy the scenic countryside out every window of the 2163 sq.ft. residence featuring 3 bedrooms, 2.5 baths, private office/den, and open concept/great room layout. The bright, cheerful space also includes a split floorplan with a primary suite that offers two walk-in closets and nicely appointed bath.
$874,000Sold for 864,000.00 on 05/27/26
2466 N Oaks Cir
Baileys Harbor, 54202
True North Real Estate LLC
3Bedroom(s)
3Bathroom(s)
AttachedParking(s)
52Picture(s)
3,006Sqft
Visits:592
This Oaks building is a singular surprise -- it features a mostly finished walk out lower level! The unit offers just over 3000 sq.ft. of space plus an attached two car garage and additional storage areas. The location within the site provides a lot of surrounding greenspace and is walking distance to downtown.
$629,900Sold for 640,000.00 on 04/24/26
