Qualified experts.

team photo of Tienken and Associates
  • First-Time Homebuyers
  • Move-Up Homebuyers
  • High-End Home Buyers
  • Short Sales
  • Investment Homebuyers
  • Agricultural Buyers
  • Se habla español
  • Home Sellers in distress
  • Home Sellers looking to down-size
  • Home Sellers looking to move up
  • Home Sellers transferring out of state
  • Serving Oregon & Washington

Tienken & Associates. A stellar team.

Brian Tienken


With over 39 years dedicated to the real estate industry, Brian Tienken is the experienced pro at the heart of Tienken & Associates and is a past realtor of the year. In 2022 alone, Tienken & Associates recorded over 44 million dollars in sales and the company is ranked in the top 1% of Realtors in the Portland Metro Area.

Brian has experience working with residential, investment, new construction, land, and agricultural real estate. He works with buyers and sellers in all price ranges, from starter homes to high-end homes and condos. With over 92% of Tienken & Associates’ business coming through repeat and referral customers, Brian has proven his ability to meet his client’s needs in an ethical and trustworthy fashion. For Brian, the home buying process is more than just a transaction, it’s the opportunity to create new relationships with each of his clients while meeting their real estate needs.

When he’s not at work, Brian enjoys staying active in the vibrant northwest outdoors and spending time with Kim, his wife of 40 years, their three adult children and their spouses, and his grandchildren. Brian also enjoys traveling, fishing, brewing beer, hiking, wine tasting, and spending time with friends.

Scott Tienken


Scott specializes in helping buyers find their perfect home and working with sellers looking to upgrade into their second or third homes. In addition, he assists investors with the purchase and sale of rental properties.

Experienced in all aspects of the sales process, Scott puts his superior communication skills to work during the negotiation process and always keeps his clients up-to-date with the latest developments in their home search. Scott handles all types of properties in all areas of Portland, from condos to townhouses to single-family detached homes.

In his spare time, Scott enjoys exploring Portland’s first-class restaurant scene, traveling, and outdoor adventures.

Cheri Williams


Seeing a project through its entirety has been at the heart of Cheri’s career. Prior to residential real estate, Cheri was a project coordinator for a public accounting firm specializing in valuation and litigation, and is currently a partial owner of a business merger and acquisition company specializing in business opportunities. Since 2014, Cheri has held her broker license in Washington and is now licensed in Oregon as well where she is excited to help clients in their residential real estate needs.

As a native to the area, Cheri is passionate about the lifestyle that the Pacific Northwest has to offer. She enjoys community building and loves spending time serving, volunteering, and supporting local restaurants. When she isn’t working, she enjoys spending time in the outdoors golfing, hiking, skiing, biking, camping and exploring with her husband and adult children.

Collin Yadon

Collin Yadon


Collin prides himself on communication and ensuring his clients’ needs are met in order for them to have the best experience when buying or selling their homes. He is also sufficiently fluent in Spanish and loves the opportunity to connect and converse. He recently went through the process of buying his first home and empathizes with how new and unfamiliar this process can be. As a current teacher in Beaverton, Collin has honed his teaching skills, which translate over when explaining the crucial parts of buying and selling, adapting with this dynamic real estate market, and ensuring everyone is on the same page before moving on to the next goal or task.

As an educator, Collin demonstrates the importance of a growth mindset. He’s constantly learning and is always a student of the game. This allows him to evaluate and determine what action items to take to achieve his goals. He instills this same passion while working with his clients, by helping to identify their goals and working effectively to accomplish them.

Outside of work, Collin loves spending time with his loved ones, fiance and dog, watching films, reading and cooking. As a native to the PNW, he is often walking his dog, attending or watching sporting events and sampling the local Portland cuisine that you cannot find anywhere else!

Vittoria Cassinelli

Vittoria Cassinelli


Having managed over 1,500 transactions, Vittoria consistently aims to come from previous successful experience to anticipate and prevent obstacles in our sales transactions. Vittoria is a licensed Broker and has experience working with high producing residential, commercial, and investment teams while meeting the highest standards in the industry for client care. You’ll communicate with her frequently when you work with our team. Vittoria works in conjunction with the rest of the team to facilitate smooth closings, systems development, team organization, business to business partnerships & alliances, marketing, database communication, and design.

In her spare time, Vittoria is passionate about trying new restaurants and wines, spending time with family, and spoiling her German Shepherd. She is an avid traveler and is always planning her next trip; while not away she enjoys exploring the food and wine of countries she’s visited. Vittoria is actively involved volunteering with victim advocacy programs, Associazione Culturale Italiana di Portland, Festa Italiana Portland, and Italian Film Festival USA.

Kim Tienken


We want to be our client’s realtor for life. But accomplishing this goal requires following through on a plan of care from the time we first meet a potential client to well after we close their sale. Kim Tienken’s vision makes this all possible. Using her communication and networking skills, Kim brings new clients into the Tienken Community and also directs our robust after-closing care program for past clients. From beginning to end, Kim is the generous caretaker of the Tienken & Associates community.

Relationships also fuel Kim’s personal life. She draws great satisfaction from connecting with friends and family over a home-cooked meal, and now extends that same spirit of hospitality to the students in her “Community Thyme” cooking classes.

Kim and her husband Brian have been married for 42 years. Together they enjoy spending time with their adult children and grandchildren Emerson and George as well as traveling and vacationing with their family in Oregon and California.

She enjoys reading, hiking, and biking in her spare time.

Let’s talk property.