Founder and Managing Attorney · Mission Impact Legal Advisors
Thania Diaz Clevenger, Esq.
Attorney for nonprofits, mission-driven organizations, and growing businesses across Florida. Admitted to The Florida Bar. Thania leads Mission Impact Legal Advisors' nonprofit practice — advising organizations on formation, governance, policies, compliance, employment, contracts, and ongoing legal counsel.
Professional Biography
Thania Diaz Clevenger brings years of experience navigating the intersection of governance, compliance, and organizational growth for nonprofits and mission-driven organizations across Florida.
Before founding Mission Impact Legal Advisors, Thania served in executive leadership roles within the nonprofit sector, giving her a deep, practical understanding of the operational realities organizations face daily. She understands that legal guidance must align with an organization's mission, budget, and capacity.
Her practice focuses on helping organizations build a solid legal foundation — from nonprofit formation and board governance to employment compliance and contract negotiations. She works with executive directors, founders, leadership teams, and boards on the decisions that shape an organization's governance, risk, and operations.
Areas of Focus
The Mission Impact Approach
Legal Guidance Before Problems Become Legal Emergencies
Most legal problems become expensive because counsel is brought in after the decision has already been made — the contract is signed, the employee is hired, the partnership is announced. Thania's approach is preventative: helping leadership teams evaluate governance, employment, contracts, policies, compliance, and operational decisions before avoidable risks escalate.
Ongoing fractional counsel lets an organization ask, "What should we consider before we do this?" instead of "How do we fix this now?" — turning legal guidance from a reactive cost into a strategic advantage.
Leadership & Board Counsel
Thania works directly with executive directors, founders, CEOs, leadership teams, board chairs, and HR/operations leadership — not only on documents, but on the governance and risk decisions those leaders face. She helps boards understand fiduciary duties, formalize governance, and address board-level legal questions before they become disputes.
Credentials
- Bar Admission
- Admitted to The Florida Bar
- Role
- Founder and Managing Attorney, Mission Impact Legal Advisors
- Service Area
- Florida (statewide)
- Approach
- Preventative, mission-aligned legal counsel
Credentials reflect verified information published on this site. Mission Impact Legal Advisors is a Florida law firm; attorneys are admitted to The Florida Bar. Submitting information through this website does not create an attorney-client relationship.
Insights & Resources by Thania Diaz Clevenger, Esq.
Guides and articles created for nonprofit and mission-driven organizations.
Frequently Asked Questions
Who is Thania Diaz Clevenger?
Thania Diaz Clevenger, Esq. is the Founder and Managing Attorney of Mission Impact Legal Advisors. She is admitted to The Florida Bar and focuses on nonprofit formation, governance, compliance, employment law, contracts, and fractional general counsel for mission-driven organizations across Florida.
What type of law does Thania Clevenger practice?
Her practice centers on nonprofit and mission-driven organizations: nonprofit formation and 501(c)(3) tax-exempt status, board governance and fiduciary duties, employment and HR compliance, contracts and agreements, compliance and risk, and ongoing fractional general counsel. She is admitted to practice in Florida.
Does Thania work with nonprofits?
Yes. Nonprofits and mission-driven organizations — including 501(c)(3) public charities, foundations, associations, and social enterprises across Florida — are the primary focus of her practice.
Does Thania advise nonprofit boards?
Yes. Through governance counsel and Mission Impact's Board Governance Center, she helps boards understand fiduciary duties, strengthen governance practices, and address board-level legal questions.
Does Thania provide fractional general counsel?
Yes. Ongoing fractional general counsel is a core service — recurring access to an experienced attorney for governance, contracts, employment, compliance, and day-to-day decisions without hiring full-time in-house counsel.
Can Mission Impact help with nonprofit formation?
Yes. Mission Impact assists with Florida nonprofit incorporation, Articles of Incorporation, bylaws, EIN, and IRS Form 1023 / 1023-EZ for 501(c)(3) tax-exempt status.
Can Mission Impact assist with employment and HR compliance?
Yes. Mission Impact provides employee handbooks, HR policies, worker classification guidance, workplace compliance, and related employment-law counsel for Florida nonprofit employers.
Where does Mission Impact provide legal services?
Mission Impact Legal Advisors is a Florida law firm; its attorneys are admitted to The Florida Bar and serve organizations across Florida (statewide), including the Tampa Bay area.
How does someone get started?
Start with Get Clarity — a brief intake that helps Mission Impact understand your organization's legal needs and how counsel may apply. Submitting information does not create an attorney-client relationship.
Work with Thania
Start with Get Clarity so we can understand your organization and how legal counsel applies to your work.
Get ClaritySubmitting information does not create an attorney-client relationship.