Fractional CFO
Executive-level financial leadership for nonprofits that need stronger budgeting, forecasting, reporting, compliance, and board-ready insights without the cost of a full-time CFO.
Boston nonprofits need clear financial leadership, stronger operations, and practical systems that support sustainable growth. One Abacus Advisory provides fractional executive support tailored to mission-driven organizations, helping leadership teams improve reporting, strengthen compliance, and make confident decisions in a competitive funding environment.

Strategic and operational consulting services designed to strengthen nonprofit leadership, systems, compliance, and long-term sustainability.
Executive-level financial leadership for nonprofits that need stronger budgeting, forecasting, reporting, compliance, and board-ready insights without the cost of a full-time CFO.
Operational leadership that improves workflows, internal systems, governance support, and cross-functional execution for nonprofits navigating growth, complexity, or transition.
Support for grant portfolios and government contracts, including compliance, reporting, drawdown accuracy, and stronger internal processes that reduce administrative risk.
Hands-on oversight of budgeting, cash flow, forecasting, and financial statements so nonprofit leaders and boards receive timely, actionable information.
Fractional HR strategy and systems support that helps nonprofits improve compliance, people operations, onboarding, and organizational development.
Assessment and improvement of accounting, payroll, HRIS, and ERP systems to increase efficiency, reporting accuracy, and internal control across nonprofit operations.
One Abacus Advisory helps Boston nonprofits build stronger financial and operational foundations through flexible consulting support. From board-ready reporting and grant compliance to HR systems and executive partnership, the firm delivers practical guidance that fits each organization’s stage and structure. This approach is especially valuable in Boston’s competitive nonprofit landscape, where accountability, funding stewardship, and efficient operations all matter.

See how nonprofit leaders gain clarity, stability, and stronger systems through tailored consulting support.
Nonprofit leaders choose a partner that understands mission-driven operations and executive-level financial decision-making.
Dedicated nonprofit expertise supports stronger stewardship, reporting, and mission-aligned decision-making.
Fractional CFO, COO, and HR support gives Boston nonprofits senior guidance without full-time overhead.
Clear, actionable reporting helps executives and boards make confident decisions in complex funding environments.
Improves finance, grants, and operational systems to support compliance and sustainable growth across Greater Boston organizations.
Experienced advisors for mission-driven organizational leadership.

Founder, Consulting CFO
Lorin Port is the Founder and Consulting CFO of One Abacus Advisory, bringing over 25 years of finance and accounting experience to the nonprofit sector. With a dedicated focus on nonprofit financial leadership for the past nine years, Lorin specializes in fractional CFO and COO services, nonprofit accounting, and NetSuite optimization. He has partnered with prominent organizations such as the San Diego Food Bank, Philadelphia Zoo, and Laguna Playhouse, delivering strategic financial guidance during periods of growth, transition, and complexity. Lorin is committed to empowering nonprofit leaders and boards with clear, actionable insights that drive stronger decisions and long-term organizational health. His flexible, right-sized approach ensures each client receives tailored support that aligns with their unique mission and operational needs.
Nonprofit consulting fees vary based on scope, seniority, and engagement length. Fractional executive support such as CFO or COO services is typically priced higher than project-based assessments because it includes ongoing leadership, reporting, and strategic guidance. One Abacus Advisory offers right-sized support, which helps nonprofits access senior expertise without committing to the salary and benefits of a full-time executive hire.
Talk with our team about your nonprofit’s goals and challenges.
Supporting nonprofit organizations across Boston and surrounding communities with flexible, senior-level consulting services.
Remote & On-Site
Service Model
By Appointment
Consultations
Nonprofit Organizations
Client Focus
Ask about consulting availability for your nonprofit organization.
Senior finance leadership across complex nonprofit environments.
Focused expertise in nonprofit finance and operations.
Flexible leadership without full-time executive overhead.
Share your nonprofit’s needs, and we’ll help you explore the right level of financial and operational support.
For immediate assistance, feel free to give us a direct call at +1 760-845-3808. You can also send us a quick email at lorin@oneabacusadvisory.com.
For immediate assistance, feel free to give us a direct call at +1 760-845-3808. You can also send us a quick email at lorin@oneabacusadvisory.com.