Our Team

Leadership Team

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Tisha R. Tallman Chief Executive Officer
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Tisha R. Tallman
CEO of Primavera Foundation

Tisha R. Tallman comes to the Primavera Foundation with 17 years of executive experience in national, regional and state non-profit organizations, advocating for individuals, families and communities at the intersection of poverty, homelessness and race/ethnicity.

Tallman, an attorney with an MBA, has served as a legal and public policy advocate, and a direct services program manager, litigating in federal and state courts, and testifying and writing on a number of public policy issues throughout the Southeast. She has experience creating programming, installing information systems and performing operations management. As a spokesperson, she has appeared in such media outlets as: BBC Radio; Japanese print media; Mexico City newspapers and radio; MSNBC; CBS Evening News; Fox News; Court TV; NPR; Washington Post; New York Times; and Time magazine.

Tallman has served on a number of boards, commissions, committees and roundtables, including ones made at the request of the Obama White House and former Mexico President Vicente Fox. She has also received a number of awards and recognitions, including: Inspiring Woman Award by the WNBA’s Atlanta Dream; NFL Hispanic Heritage Leadership Award by the Atlanta Falcons; YWCA Woman of Achievement; Regional Advocate of the Year by the U.S. Department of Commerce, MBDA; 100 Most Influential Atlantans by Atlanta Business Chronicle; and Game Changer Award by Spelman College.

Tallman has a B.A in Political Science, B.A. in Journalism & Mass Communication from the University of Iowa; J.D. from the University of Iowa College of Law with distinction; MBA from Emory University Goizueta Business School with honors, the Information Systems and Operations Management Award and the Entrepreneur Award; certification in Coding from Georgia Tech University; and certification in Blockchain Technology from Berkeley Law Blockchain Academy.

A native Iowan born to a Mexican-American mother and a Caucasian father, she comes to Tucson via Atlanta, Minneapolis and St. Paul, Minnesota. She is a mother. She is also a niece and granddaughter to Mexican migrant farmworkers.

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Tamara Prime Chief Community Resilience Officer
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Tamara Prime
Chief Community Resilience Officer

Tamara Prime provides strategic leadership, staff guidance and oversight across many lines of business, including: Emergency Services; Workforce Development; Civil Rights Restoration; Financial Education and Empowerment; Homeownership Promotion; Neighborhood Revitalization; and Community Building and Engagement.

Throughout her 30-year career, Tamara has advocated for community-driven change and social equity, holding roles such as: chief of staff for a local elected official; community affairs administrator for the regional council of government; project manager for a statewide philanthropy organization; and director for nonprofit organizations.

Tamara holds a master’s degree from Prescott College and a bachelor’s from the University of Arizona.

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Cammie Dirrim Chief Compliance & IT Officer
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Cammie Dirrim
Chief Compliance & IT Officer

Cammie Dirrim oversees reporting and compliance of all grants, as well as strategic oversight of Primavera Foundation’s technology.

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Brian McGrath Chief Asset and Property Management Officer
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Brian McGrath
Chief Asset and Property Management Officer

Brian McGrath, who joined Primavera in 2015 and was promoted to his present role in 2019, oversees long-term planning of Primavera’s assets. This includes general maintenance and capital improvements of our properties and the management of affordable rental housing and real-estate donations. Brian has more than 25 years of experience in management, construction and small business ownership.

He is proud of improving Primavera properties to provide safe, affordable housing and making significant energy-efficiency upgrades.

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Margarita Bauzá Chief Human Resources & Human Capital Officer, Chief Communications Officer
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Margarita Bauzá
Chief Human Resources & Human Capital Officer, Chief Communications Officer

Margarita Bauzá oversees human resources, professional development and communications. She joined Primavera in 2022 from the University of Arizona, where she was senior communications director for the Health Sciences.

A former journalist, public relations professional and U.S. Army veteran, Margarita has spent her career making sure diverse voices are heard and stories told. Her career has included work as a journalist in Michigan, including writing for the Detroit News and Detroit Free Press; as an agency Hispanic Communications leader at General Motors; and as a communications leader at the Community Foundation for Southeast Michigan and at Northern Arizona University.

Margarita has bachelor’s and master’s degrees from Michigan State University. She also is a graduate of the MSU Army Reserve Officer Training Corps.

Executive Services

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Paula Dwornicki Quality Assurance Officer
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Paula Dwornicki
Quality Assurance Officer

Paula joined Primavera Foundation in January 2024 as Quality Assurance Officer. 

Prior to joining, she had over 30 years of experience at non profit organizations.

Paula is proud of the work that she has done in developing programs and processes to ensure that the organization she works for is doing quality work for the people they serve as well as seeing others grow and achieve their goals.

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Michael Macrie-Shuck, Ph.D. Data Management Officer and CEO Assistant
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Michael Macrie-Schuck, Ph.D.
Data Management Officer and CEO Assistant

Michael joined Primavera in May 2023 as the Data Management Officer and CEO Assistant.

He has a Ph.D. from the University of Arizona in Chemistry, with backgrounds in Education, Data Analysis, and Organic Chemistry.

Additionally, he has several publications in the field of Chemistry Education, and a collaborative publication that has been highlighted as seminal work in the field.


Randi Arnett Director, Outreach Services
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Randi Arnett
Director, Outreach Services

Randi Arnett joined Primavera Foundation in February 2024 as the Outreach Services Program Manager to design, develop, and implement the Mobile Outreach and Transportation Services programs. She has a Master’s in Business Administration from Franklin University and the majority of her career has been focused on affordable housing and working with programs focused on assisting vulnerable populations. She is new to Tucson via Ohio and excited to be a part of Primavera and help advance the organization’s mission.

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Karen Caldwell Director, Workforce Development
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Karen Caldwell
Director, Workforce Development

Karen Caldwell oversees Primavera Works, a social enterprise that offers workers experiencing homelessness or other barriers an alternative to day labor halls. Primavera Works provides temporary, above-minimum wage employment and permanent job search assistance.

Karen was born and raised in Tucson and graduated from the University of Arizona with a bachelor’s degree in sociology. She has worked at the Primavera Foundation for more than 25 years.

Christopher Dussault Director, Facilities Management
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Christopher Dussault
Director, Facilities Management

Christopher Dussault joined Primavera Foundation in October 2017 as a maintenance technician and a little over a year later was promoted to director of facilities management.

Chris previously worked in transitional housing for homeless veterans. It was here that Chris found his passion for giving back. At Primavera, Chris has realized the deeper impact he can have in the community through his work in affordable housing.

Chris has led multiple property renovations, including projects at the Men’s Shelter and the historic Alamo Apartments. He has also assisted in the logistics and rollout of the new Primavera Resource Center.

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Danell Jessup Senior Director, Homelessness Intervention and Prevention
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Danell Jessup
Senior Director, Homelessness Intervention and Prevention

Danell Jessup joined Primavera in 2019 as a contract specialist in Rapid Rehousing and was promoted to her current role in January 2023. She oversees Primavera’s drop-in center and its rental and utility assistance programs, in addition to our Rapid Rehousing programs.

She has a bachelor’s degree in Community Advocacy and Social Policy from Arizona State University and spent years in retail management before entering the non-profit field. Eager to be in a role where she can help others, Danell is thankful to be at Primavera where she makes a difference in the community.

Reyna León Senior Director, Emergency Services
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Reyna León
Senior Director, Emergency Services


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Denise Lopez Co-Director, Project Action for Veterans
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Denise Lopez
Program Director, Project Action for Veterans

Denise Lopez joined Primavera in 2017 as a Resource Specialist with Project Action for Veterans and was promoted to her current role in December 2021. 

She oversees a program funded by the Department of Veteran Affairs with a goal of ending veteran homelessness. The program not only houses veterans in Pima County, but also works with veterans in rural Cochise, Greenlee, Graham, and Santa Cruz counties.

Since earning her Bachelor’s degree in Criminal Justice, she has 7 years of experience in the behavioral health field and has spent 10 years working in Rapid Rehousing, Homelessness Prevention, and Permanent Supportive Housing.

Denise has found a passion in working towards the goal of ending veteran homelessness and is her way of giving back to those who served. 

Jacob McQuaid Co-Director, Project Action for Veterans
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Jacob McQuaid
Co-Director, Project Action for Veterans

After graduating from high school in Maryland in 2006, Jacob served in the Army for 11 years. Duty assignments included being an All-Source Intelligence Analyst at Fort Carson Colorado with a 12-month deployment supporting Operation Iraqi Freedom.

He was then the Non-Commissioned Officer In Charge of Intelligence and Security for his unit in Fort Wainwright, Alaska. This assignment led to his second deployment to Iraq, in support of Operation New Dawn.

Jacob spent his final years of Army service at Fort Huachuca Arizona, as a training developer for the US Army Intelligence Center for Excellence.

After studying Nutritional Science at the University of Arizona, Jacob began working at Primavera Foundation’s Project Action for Veterans in January 2022 as a Contract Specialist. He was promoted to Senior Contract Specialist in January of 2023, and is now serving as the Co-Director.

When he’s not at work, he likes to rock climb, hike, watch anime, play video games, and volleyball.

Celia Mendivil Director, Homeownership & Financial Capability
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Celia Mendivil
Director of Homeownership & Financial Capability

Celia Mendivil, with Primavera Foundation for over 22 years, has served her community by providing a variety of services, including financial capability and homeownership courses, financial coaching and housing counseling.

Currently, Celia oversees programs such as “Her Family,” a financial empowerment class for single mothers and their children; “Mis Abuelitos,” financial success services for grandparents and their grandchildren; and the “Siemer Project,” which provides assistance outside of school to help students succeed.

Celia has a certificate in business and administration from Pima Community College, is a HUD-certified housing counselor, and has completed homeownership and community lending certification through studies with NeighborWorks America.


Kristina Abril Operations and Evaluation Manager
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Kristina Abril
Operations and Evaluation Administrator

Kristina Abril’s professional interests lie in fostering effective communication and community engagement through evaluations and surveys. She strives to gather insights that can drive positive change and enhance the overall value of community programs and initiatives.

With a background in healthcare, leadership and visual design, Kristina oversees day-to-day operations of the administrative team, managing tasks such as scheduling, front-end care for callers and visitors, and supporting staff. She is committed to ensuring exceptional service for all Primavera clients and participants.

Outside of work, Kristina has provided voluntary service as a hospice caregiver and emotional support to individuals and families in need.

Paul Guiffre Program Manager, Men's Shelter
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Paul Guiffre
Program Manager, Men’s Shelter


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Rosanne Loya Resident Services Manager
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Rosanne Loya
Resident Services Manager

Since joining the Primavera Foundation in 2014, Rosanne has worked in a few different roles, including transitional housing, eviction prevention and now resident services. 

As Resident Services Manager, she works with Primavera’s affordable housing developments in the Tucson area, engaging with several agencies to offer referrals and training on life skills to individuals in need.

Rosanne’s previous experience includes two years as a Resource Specialist in the Transitional Housing program for individuals and families. Along with helping women on the streets and domestic survivors acquire the confidence and fortitude to lead independent lives, Rosanne has worked as a Senior Resource Specialist at the Casa Paloma Women’s Shelter and with the Eviction Prevention Program at the beginning of the pandemic.

Rosanne is part of our full-time staff while working to complete her BS in Human Services online at Post University.

Originally from Tucson, Rosanne loves to travel and plans to retire from Primavera in the near future.  She also cherishes the long-lasting connections she has forged with other partner organizations, participants, and residents in the surrounding area.

Sara Monazzami Project Manager
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Sara Monazzami
Project Manager

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Nate Young Program Manager, Women and Family Shelters
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Nate Young
Program Manager, Women and Family Shelters

Nate joined Primavera Foundation in January 2024 as Program Manager, Women and Family Shelters. 

He comes to us from Community and Family Services International, a humanitarian organization in the Philippines.

His past experience also includes about 18 months as a Housing Supervisor for Our House Shelter, where he supervised over 80 residents, job trainees and volunteers in a high-needs population. 

Communications and Community Engagement

Eric Cross Volunteer Coordinator
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Eric Cross
Volunteer Coordinator

Geraldine Espinosa Marketing and Communications Specialist
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Geraldine Espinosa Marketing and Communications Specialist

Geraldine joined Primavera in November 2023 as Marketing and Communications Specialist. 

She is responsible for managing our social media channels and content calendar and working with the team to develop event plans and coordinate event organization. 

She comes to us from the University of Arizona Marketing and Brand Management department, where she worked as a Social Media and Digital Marketing Assistant. 

Geraldine graduated from the University of Arizona in 2023 with a B.A. in Journalism. 

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Anna Nguyen Communications, Human Resources and Events Specialist
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Anna Nguyen
Communications, Human Resources and Events Specialist

Anna joined Primavera in January 2022 as Project Specialist. 

She is responsible for updating job postings, screening applicants and other human resources tasks, as well as internal and external communications like our newsletters. 

Prior to joining Primavera, she began working with HopeCare Services, LLC here in Tucson to assist children with disabilities and help their parents care for them. 

Anna graduated from the University of Arizona in 2022 with a B.S. in Public Health. 

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Lupita Rodriguez Community Engagement Liaison
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Lupita Rodriguez
Community Engagement Liaison

Lupita Rodriguez has worked at Primavera Foundation since 2011. She collaborates with agencies, individuals and families that would benefit from Primavera services. Lupita also educates the community through presentations, resource fairs, special events, meetings and partnerships.

Before her current position, Lupita spent 11 years in Primavera’s Home Ownership program, much of that as co-director, and worked in an Eviction Prevention program for two years. She earned HUD certification as a housing counselor in 2020.

Lupita previously worked in mortgage lending for over 25 years. A Tucson native, she loves our diverse community with its culture, barrios (neighborhoods), food and people.

Anna Rojo Keene Public Policy Advocate
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Anna Rojo Keene
Public Policy Advocate

Anna Rojo Keene is a University of Arizona graduate and longtime advocate and organizer. She has organized in grassroots, electoral and intersectional issue based movements and campaigns. She first became involved in reproductive justice advocacy as a Teen Advocate for Planned Parenthood Arizona in 2011, and has held roles for Planned Parenthood statewide and nationally, including serving as a Global Youth Advocate Fellow for PPGlobal advising on the United Nations Commission on Population Development in 2016. She currently serves as the Secretary of the Planned Parenthood Arizona Board of Directors and has been a Board Member since 2017. In 2021, she directed a public health mobilization campaign, “Take YOUR Shot!/Vacunate Ya!” to address vaccine equity in South Tucson, which received the USAging Innovation Award for Advocacy in 2022. 

In her current role at the Primavera Foundation, Anna oversees public policy strategy, public policy education, and engages with movement and elected leaders to advance Primavera’s priorities at the local, state, and national level.

Trevor Williamson Communications and Events Specialist
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Trevor Williamson
Communications and Events Specialist

Trevor joined Primavera Foundation in November 2023 as Communications and Events Specialist. 

He comes to us from Kozolchyk National Law Center, where he worked as Communications Specialist, leading their external communications, including website and fundraising database management. He also managed their events and coordinated office rentals. 

Trevor graduated from the University of Arizona in 2020 with a B.A. in Journalism. 

The Primavera Foundation has between 85-90 employees at any given time. Primavera Works, our temporary staffing agency, employs between 100-145 individuals a year.


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