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At The Crossroads

We find the intersection between people's needs.

Founded in 1981 and situated just off I-5 in Lake Oswego, Mainlander Property Management, Inc. has been bringing people together with mutual needs for over 30 years.

We specialize in property management services, managing a portfolio of approximately 1,400 rental units in the Portland-metro area. We pride ourselves on being the most knowledgeable, courteous, and customer service-oriented property management company in the region. We invite you to become a part of our unique group.

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Why choose Mainlander
as your Portland Property Management company


I couldn't have worked with anyone more competent or conscientious. Ever since Mainlander has been managing my house, the time I spend seeing to the details is hugely reduced from what it once was. Thank you again for making property owners...

Ronald Harris, Mainlander Property Owner

Portland Property Management Blog

Landlord Liability - What You Need to Know

Mainlander - Tuesday, August 23, 2016

Getting your property ready to rent is one thing, and protecting that property and yourself is another. Property management companies do a lot more than taking rent payments. Navigating the world of rental property liability is murky at best, and a complicated area without professional help if an issue arises, or to help ensure you are getting the best quality tenants. There are some instances where a landlord may be held responsible and are good cause for a very thorough tenant screening process.  Read More

Quick Contact


3927 Lake Grove Avenue
Lake Oswego, OR 97035

Mailing Address:
P.O. Box 2028
Lake Oswego, OR 97035

Tel: (503) 635-4477
Fax: (503) 635-6508

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Mainlander Property Management Inc, Property Management, Lake Oswego, OR