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About Us

Blankstein Enterprises is a Milwaukee based family owned business that was established in 1932 by Sol Blankstein.

Blankstein owns and manages apartment communities in Milwaukee, Sheboygan and Winnebago counties.

Donald Bass, CPM is the President of Blankstein Enterprises, Certified Property Manager member and 3rd generation of the family business. He joined the business full-time in 1983 and is a graduate of UW- Madison. Donald holds an undergraduate degree in Risk Management and Insurance and in Real Estate. He also holds a Masters Degree in Finance.

Eugene Bass, CEO and past President of Blankstein Enterprises joined the business in 1959 and has led the company since the early 1970’s.

Experience the Blankstein Difference:

  • We are committed to providing clean, quality, impeccably maintained buildings that are a fair value.
  • We focus on excellent customer service to ensure you have a carefree home with us for years to come.
  • We have professional on-site building managers, a caring office staff and a 24/7 emergency maintenance team, that set us apart. between us and our competitors.
  • We represent a positive image with our residents and within our communities.

Optimum Property Management is certified by the Institute of Real Estate Management (IREM) as an Accredited Management Organization (AMO).

We have managed property on a fee basis through Optimum since the 1970’s.

View our Properties and Agents.

Over 70 years

of making people

feel at home

Our Leadership

Eugene Bass
Eugene Bass joined the business in 1959, and has been running the company since the early 1970’s. Gene holds the title of Certified Property Manager (CPM). He has held the positions of President of the Milwaukee Chapter of the Institute of Real Estate Management (IREM), Avenues West Association, Building Owners and Managers Association (BOMA), and the Greater Milwaukee Hotel/Motel Association. Gene was also a director of the Milwaukee Convention and Visitors Bureau and as a certified instructor has taught Property Management at the Milwaukee Area Technical College.
Donald Bass
Donald Bass joined the business in 1983 and is a graduate of UW-Madison. Donald holds undergraduate degrees in Risk Management and Insurance, and Real Estate, and also holds a Masters Degree in Finance. He is also a Certified Property Manager (CPM).

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