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Streamline Leadership

Mike Stillwell


Mike Stillwell is the CEO and co-founder of Streamline, overseeing a leadership team that manages 65 employees across 5 operating companies:  Acquisitions, Development & Construction, Realty, Warranty Services, and Property Management. Mike began his career as a Steamfitter foreman, responsible for directing large scale projects such as Citizens Bank Park, Tower at Children’s Hospital, and Merck pharmaceutical sites.

In 2007, with an entrepreneur spirit and drive, Mike ventured toward Philadelphia neighborhoods to begin his passion for creating a thriving construction and development process in urban markets. Streamline was formed with a vision to simplify the construction process. While working in Point Breeze, he met his business partner who had a similar vision. Their instant bond, trust, and shared business goals quickly blossomed into a partnership in 2008 at the height of the recession. The partners saw a need & a service opportunity to enhance the process for the new construction consumer as well as streamline the construction process for development. Mike’s persistence and self-motivated drive to create a positive impact within Philadelphia quickly led to rapid growth for Streamline.

Tristin Fletcher

Vice President of Operations

Tristin Fletcher joined Streamline in 2017 with an extensive background in business to consumer sales & marketing.  She is responsible for ensuring a tech-enabled environment to support profitability & scalability.  Tristin oversees the company’s Sales, Property Management, and Corporate Technology functions & performance.  Tristin’s primary focus is to ensure continuous technology enhancements throughout Streamline to support operational efficiencies as well as delivering an exceptional, innovative consumer experience for company growth and expansion.

Tristin brings 10+ years of creating, building, and growing organizational departments and operational procedures with a 8 year tenure at VF Corporation.  Her experience includes Consumer Market Research, Customer Relationship Management, Corporate Communications & Training, Web Development, and Advertising.

Tristin is a licensed Realtor® and has her B.S.B.A from Kutztown University of Pennsylvania.

Steve Kosloski

Vice President of Residential Development

Steve Kosloski joined Streamline in 2014 as Vice President, responsible for overseeing land acquisitions, development strategy, residential underwriting, and financing relations for a home building portfolio in Philadelphia totaling approximately 1,000 units and $300MM of revenues.

Today, Steve leads the companies growth plans for new strategies within the Philadelphia market to expand the product offerings and the company portfolio. In addition, he leads company initiatives for urban expansion into new markets throughout the nation.

Steve has a diverse real estate development/finance background that spans 14 years and includes stops at Toll Brothers, Keating Group (Dan Keating) and Keystone Property Group (Bill Glazer). Steve has been directly involved in the development and financing of over $1.4 billion of real estate in Philadelphia and other markets across the country.

Steve’s educational background includes a finance/international business degree from the McDonough School of Business at Georgetown University.

Casey Williams

Vice President of Construction

Casey Williams joined Streamline in 2017 as a Construction Manager, overseeing multiple Residential New Construction sites throughout Philadelphia.  Casey’s expertise, performance, and ability to navigate new construction within an urban market supported his growth into his role today as Vice President of Construction.  Today, Casey is responsible for overseeing Streamline’s Construction Operating company that consists of Construction Operations and Management and Warranty Services.

Casey brings a 12 year residential construction career from NVR, Inc. and holds a BS in Management Science and Information System at Penn State.

Linda Schellenger

Business Advisor

Linda is best known as an inspirational leader who brings a unique blend of a sharp yet flexible business mindset; a passion for building organizations, teams, and results; and a commitment to making connections one client, alliance partner, leader, and employee at a time. Further, her experience working across diverse verticals in the customer contact center industry enabled her to bring best practices and industry insights forward. With that experience, Linda’s leadership most recently took Telerx, a wholly-owned subsidiary of Merck & Co., from a $90M organization to a $200M+ organization.

Linda joined Telerx in January 2006 as VP, Business Development and then SVP, Sales and Marketing with the responsibility for leading the strategic organic and acquisition growth of the organization. In April, 2007 Linda was named President and a member of their Board of Directors, overseeing all functional areas including strategic development, business, and financial planning, and driving strategic value back to their clients and Merck, the parent company.

After retiring from Telerx in 2017, Linda joined Streamline with a focus on Strategic Planning and Business Expansion to achieve rapid company growth and development.

Want To Learn More? 

Whether you are looking to build your new home, invest in real estate, or sell your property, Streamline can help! Contact us today!