SLL - Key Persons


Alysa Phillips

Job Titles:
  • Staff Member

Alysa Phillips S.

Job Titles:
  • Staff Member

Alysa Y. Phillips

Job Titles:
  • Senior Project Manager
  • Senior Project Manager Read Mor
Alysa Y. Phillips has completed multiple projects in the public and private sector. She has worked as an Owner's Representative, as well as for major General Contractors and most recently before rejoining S.L. Leonard, she was Director of Construction for a regional creative shared office landlord for all its properties in Southern California.

Bonnie Wong Francisco Sr.

Job Titles:
  • Estimator
  • Project Manager
  • Estimator & Project Manager Read More
Bonnie Francisco has almost two decades of construction project management and estimating experience with major construction companies in the Southern California area prior to joining S.L. Leonard & Associates. Her time as a senior estimator benefitted from her attention to details and resulted in relationships built on trust and respect with clients and the subcontractor community. Her experience includes civic projects, multi-family housing and self-performed concrete construction management.

Brad Karr P.

Job Titles:
  • Mechanical and Electrical Specialist
From museums and destination hotels to medical facilities and corporate headquarters, G. Bradley "Brad" Karr's 30 year career includes extensive experience in engineering studies and evaluations, mechanical and electrical engineering design, project administration and management, and construction management. SLL has a strategic alliance partnership with Brad.

Christie Rice P.E.

Job Titles:
  • Senior Project Manager
Christie started her professional career as a structural engineer at KPFF consulting engineers in Los Angeles, then transitioned to representing owners and developers on public and private projects. With more than 15 years of design and construction experience, Christie brings a wealth of knowledge to S.L. Leonard's clients' projects.

Dennis Mitchem

Job Titles:
  • Principal
  • Principal Read Mor
Dennis was a board member for the Senior Canyon Mutual Water Company in Ojai.

John Matthews

Job Titles:
  • Principal
  • Principal Read Mor
John brings over 30 years of building experience to SLL's clients' projects. He is a licensed general contractor and has participated and overseen entitlement, design, construction and occupancy of thousands of units of housing over his career. Additionally, he has extensive commercial construction experience and has managed several office construction projects.

Joseph R. Santiesteban

Job Titles:
  • Senior Project Manager
  • Senior Project Manager Read Mor
Joe Santiesteban brings over thirty years of experience in all aspects of development, design, and construction from the perspective of the Owner/Developer, Architect, and Contractor. His extensive experience on both sides of the table allow him to understand opposing points of view and solve problems with a collaborative approach. Joe's hands-on knowledge and confidence has resulted in most of his projects finishing under budget and ahead of schedule. Joe is an immigrant from Cuba and although he is not fluent in Spanish he does speak Spanglish.

Maria M. Washburn

Job Titles:
  • Project Manager
  • Project Manager Read More

Maria Washburn

Job Titles:
  • Staff Member
Maria Washburn began her construction and development management career in New York City fifteen years ago on the $200+ million Rehabilitation of the 63rd St Station on the Second Avenue Subway Line. After working in NYC until 2015, she moved to Los Angeles, where Skanska USA Civil employed her and then Hathaway Dinwiddie Construction Co. Her experience includes a $100+ million design/build of the Santa Monica Modernization project.

Maria Washburn S.

Job Titles:
  • Staff Member

Marsha Peterson

Job Titles:
  • Scheduler
  • Scheduling Specialist

Megan L. Turner

Job Titles:
  • Principal
  • Principal Read Mor
  • Principal S.L. Leonard 2023 - 03 - 13T23

Mike Iwuchukwu S.

Job Titles:
  • Principal
  • Principal Read More
Mike has a Bachelor of Science in Civil Engineering with emphasis on construction management and structures from the University of Southern California Sean and Mike are just terrific, and they offer a balanced perspective. We were having some bumpy spots with Olive Court and had gone through several construction project managers. I was beginning to think maybe we shouldn't even hire one! But after seeing the work Sean and his team did on Fuller Lofts, we decided to bring him on board for this project, even though it was late in the game. Mike has been great as an interface between me and the contractor, allowing me to not be in the firing line.

Miriam Tasker

Job Titles:
  • Project Manager
  • Project Manager Read Mor
Miriam Tasker brings over 30 years of design and construction experience to S.L. Leonard & Associates. Miriam has accumulated vast experience in project management, design, production of working drawings, coordination of consultants, and supervision of building construction for diverse building project types. These include hotels, offices, schools, shopping centers, churches, and single and multi-family low and high rise residential architecture.

Perla Hernandez Lastra

Job Titles:
  • Principal
  • Member of the Society of Hispanic Professional Engineers
  • Principal Read Mor
Perla is a LEED Accredited Professional and is OSHA 30-hour Certified. Perla is a member of the Society of Hispanic Professional Engineers, Engineers for a Sustainable World, Social Economic Environmental Design and Cornell Society of Engineers. Perla was a recipient of the 2024 Los Angeles Business Journal Leaders of Influence: Construction, Engineering & Architecture recognition, 2018 Engineering News Record California Top Young Professionals award, and 2017 Pacific Coast Business Times Latino Business Award and 2020 Top 40 Under 40 Award.

Randell Lawrence Sr. - VP

Job Titles:
  • Principal
  • Vice President
  • Principal & Vice President Read Mor

Sean Leonard - CEO, President

Job Titles:
  • CEO
  • President
  • Managing Principal & CEO Read Mor
Sean Leonard started their friendship in the late 1980's when they both worked onsite for the General Contractor on Wilshire Courtyard, a million square foot class A office building with 950,000 square feet of subterranean parking.

Teri Malinowski

Job Titles:
  • Project Manager
  • Project Manager Read More
Teri Malinowski brings more than 25 years of project management and entitlement experience to SLL. She has managed a multi-prime delivery of solar, mechanical, electrical and plumbing upgrades to a 66-unit affordable apartment building, and condition compliance and entitlements for a residential subdivision.