The Paradigm Team

Kevin McCall

Chief Executive Officer

Direct: 617-933-8230


Personal Traits: Strategic thinker, organizer, leader.

What I do: Provide leadership and oversee both Paradigm Properties and Paradigm Capital Advisors with particular emphasis on strategy, client relations, new investments, asset and portfolio management, and raising capital.

Who am I: INTJ, veteran in real estate operations and investing, deeply committed to education equity, community involvement, and social justice work, founder of Building Impact, lacrosse-aholic, and recovering Diet Coke drinker.

John Caldwell


Direct: 617-933-8250


Personal Traits: Motivator, Negotiator, Convertor of visions to tasks.

What I do: Fill buildings and keep them full! Provide asset management, brokerage, leasing and marketing management, leadership and team member career counseling, identify and underwrite new investments.  Pursue good design in all building improvements and obsess about client relationships.

Who am I: ENTJ.  Veteran in leading commercial real estate brokers and property management firms.  Devoted to early education, spiritual education, church.    Razor scooter rider.  Office prankster.

Marianella Grieco

Senior Vice President of Accounting & Administration

Direct: 617-933-8285


Personal Traits: Consistent, caring, concise.

What I do: Oversee the accounting, finance, and human resources functions of both companies and I am responsible for the accounting and financial reporting activities of Paradigm Capital Advisors’ investment funds.

Who am I: Mother to an amazing little girl, enjoy traveling, warm weather, the beach, family time, bike riding.

Cindy Huveldt

Vice President/General Manager

Direct: 860-275-6661


Personal Traits: dedicated, goal-oriented, planner.

What I do: Take a Client focused approach to managing Hartford’s premier Class A office building known as Cityplace I.  Provide strategic and operational direction to staff, contractors, and vendors while managing various capital projects.

Who am I: Baker and cook with knack for event planning.  Early riser.

Jennifer Mendenhall

Property Manager

Direct: 860-275-6653


Personal Traits: Organized, Dependable, Down-to-Earth.

What I do: Direct daily operations and management for a Class A asset in Downtown Hartford known as Cityplace I, while working with clients to solve problems and fulfill requests.  In addition, I provide administration oversight of budgets, contracts, vendors and contractors.

Who am I: Nature Lover, Amazon Devotee, Chocolate Cookie Enthusiast.

Michael Batista

Assistant Property Manager

Direct: 860-275-6664


Personal Traits: Creative, conscientious.

What I do: Work with engineering, cleaning, and security to facilitate day- to- day operations while maintaining a focus on client service.  Participate in accounting processes with other members of the management team.  Brainstorm and design building signage.

Who am I: Proud dad, published comic book illustrator, coffee and beer snob.

Aaron Dorsch

Vice President/Regional Manager

Direct: 614-882-4142 x11


Personal Traits: Team builder, analytical, loyal, consistent.

What I do: Direct daily operations at Ohio office.  Strive to provide best in class service.  Improve process efficiency.  Coach.

Who am I: Sports and music enthusiast. Competitive.  Beach Bum.

Stephanie Mathews

Property Manager

Direct: 614-882-4142 x12


Personal Traits: Dependable, organized, ability to act quickly, energetic.

What I do: Responsible for the day-to-day operations of the portfolio, including fulfilling client requests, problem solving, overseeing client relations, construction management, managing building engineers, prepare and evaluate contractual services, and responsible for budgets.

Who am I: ISTJ.  Devoted mother, runner, wine enthusiast, animal lover, and love to shop!

Halle Greenhut

Property Manager

Direct: 614-882-4142 x16


Personal Traits: Efficient, Thorough, Economical.

What I do: Oversee daily operations for properties in my portfolio including office buildings, retail, and industrial/flex space.  Balance my time between focusing on construction projects, attending to clients and overseeing property level operations with the end goal to minimize costs and increase value.

Who am I: Relationship oriented, avid tennis player, interested in accessible sustainability.

Virginia Rey

Vice President of Property Management

Direct: 617-933-8237


Personal Traits: Operation and task management with a ‘get it done’ attitude. Fluent in Spanish.

What I do: Direct daily operations and management for numerous properties within the company’s portfolio. In addition, I manage client-related construction projects and property renovations, while overseeing the property management staff and vendor services.

Who am I: Life’s consummate juggler, company glue, wife, and mom of two extremely energetic boys.

Howard E. Clark

Vice President of Project Management

Direct: 617-933-8232


Personal Traits: A ‘peace maker’ and ‘cool head’ in the construction process. A winning combo: strategic thinker + personable communicator.

What I do: Assure project value by keeping process efficient and by noticing the details. Manage large capital projects for Paradigm.

Who am I: A family man inspired by the active outdoors with an interest in bugs, reptiles, and their exotic ecosystems.

Kelly Giordano

Senior Marketing & Leasing Manager

Direct: 617-933-8221


Personal Traits: Collaborative, creative, organized.

What I do: Direct all facets of establishing the corporate and property brand identities as well as developing strategic messaging behind the marketing communications. In addition, I work closely with the brokerage community handling all aspects of the lease process from the initial showing through lease negotiation.

Who am I: Wife, Crossfit junkie, Multi-tasker, Caribbean vacationer, lover of interior and graphic design.

Oliver Johnson

Investment Analyst/ Assistant Project Manager

Direct: 617-933-8242


Personal Traits: Takes an enthusiastic approach to learning and developing analytical skills.

What I do: Member of the Investment/finance team. Manage analytical and due diligence work for acquisitions, dispositions, financings, and major portfolio decision-making as well as quarterly/annual valuation and performance reporting.  Assist in the management and coordination of several capital projects in the portfolio.

Who am I: Avid surfer, snowboarder, tennis player, food & beverage connoisseur, reader, student of the world.

Susan Costanza

Senior Property Accountant

Direct: 617-933-8220


Personal Traits: Organization and precision

What I do: Financial reporting, maintaining budget and actual financial data, and client operating and real estate tax escalations.

Who am I: Half marathon runner, science fiction reader, passionate traveler, Donald Duck fan.

Filomena Muthu

Property Accountant

Direct: 617-933-8243


Personal Traits: Dependable and orderly

What I do: Prepare monthly financial reports and budgets and manage accounts receivable.

Who am I: Long-time Paradigmer, devoted mother, bus rider, Walking Dead fanatic

Lois Mazzola

Asset Manager

Direct: 617-933-8261


Personal Traits: Diligence, facilitator, analytical

What I do: Asset Manager responsible for project oriented assignments focused on construction, leasing, sales and management for Paradigm’s office and industrial portfolio.

Who am I: Loving mom, devoted community volunteer, avid reader, traveler.

Shelly Just

Property Manager

Direct: 617-933-8236


Personal Traits: Assertive, compassionate, highly energetic

What I do: Direct daily operations for a number of Paradigm assets, including solving client problems and fulfilling client requests, managing building engineers, financial oversight and budgeting and construction administration. I also provide oversight to the daily office management at company headquarters and assist Senior Property Management to solve client problems and requests across the entire Paradigm Boston portfolio.

Who am I: social butterfly, concert goer, Syracuse-native, proud UVM alum, consistent gum chewer.

Scott Olsen

Director of Engineering

Direct: 617-933-8251


Personal Traits: Diligent, Detailed, Determined

What I do: Direct the 24/7 support provided by the Building Engineering Group responsible for the proper function, maintenance, and continual operation of all Paradigm held or managed assets. I also provide additional team assistance in proposal development, project supervision, design/construction assessment and contractor direction.

Who am I: Car, boat, motorcycle enthusiast, scuba dive master, burrito lover

Shaka Lattin-Emmanuel

Operations Associate

Direct: 617-933-8222


Personal Traits: Dependable, multitasker, organized.

What I do: I Manage HR and IT operations. I also assist with policy implementation, office management and invoice approval.

Who am I: Loving wife, enjoy reading, traveling, and going to the beach.

Samantha Burke

Accounts Payable Specialist

Direct: 617-933-8238


Personal Traits: Analytical and systematic

What I do: Coordinate and implement the accounts payable cycle for all the buildings, entities, clients, and vendors while providing overall support to the accounting department.

Who am I: Breakfast eater, newlywed, Boston sports fan, adventure seeker.

Cassandra Hall

Manager of First Impressions

Direct: 617-927-2500


Personal Traits: Multitasking and dependability

What I do: Responsible for working and collaborating with clients and colleagues at City Year headquarters.

Who am I: Family matriarch, fashionista, lover of R&B and gospel.

Jessica McGuinn

Client Service Liaison

Direct: 781-697-4169


Personal Traits: Highly motivated, enthusiastic, detailed-oriented.

What I do: Liaison between Paradigm and their clients at RS56 and Middlesex Green.  Assist the property management team with client correspondence, Client appreciation events, and daily operations.

Who am I: Virginia-native, food & beverage enthusiast, adventure-seeker.

Louisa Caldwell

Operations Assistant

Direct: 617-933-8240


Personal Traits: Reliable, flexible, unique.

What I do: Assist in the overall operations of the company and portfolio.

Who am I: Adventure seeker with a background in outdoor education and a passion for psychology.

Craig Moore-Jenkins

Facilities Manager at City Year

Direct: 617-933-8252


Personal Traits: Intuitive and Responsive

What I do: Responsible for effective day-to-day operations management at City Year while emphasizing a positive response to the concerns of clients and ensuring stable operation of the property.

Who am I: The oldest brother of 3, Men’s Physique Competitor, Book Worm