Financial Oversight
Provide executive-level oversight of budgeting, forecasting, cash flow, and financial reporting so nonprofit leaders and boards can make timely, informed decisions with confidence.
Get experienced financial leadership when your nonprofit needs stability, clarity, and forward planning without adding a full-time executive salary. One Abacus Advisory helps organizations strengthen reporting, cash visibility, board communication, and compliance during transitions, growth periods, audits, or leadership gaps so mission-critical decisions stay informed and operations keep moving.

Strategic nonprofit finance support designed to stabilize operations, improve visibility, and guide leadership through change.
Provide executive-level oversight of budgeting, forecasting, cash flow, and financial reporting so nonprofit leaders and boards can make timely, informed decisions with confidence.
Step in during leadership departures, staffing gaps, or organizational change to maintain continuity, support close cycles, and keep finance operations moving without disruption.
Deliver board-ready reporting, financial analysis, and strategic guidance that helps executive teams strengthen governance, planning, and stakeholder communication.
Build practical budgeting frameworks and cash forecasting tools that improve visibility into funding cycles, spending patterns, and near-term financial needs.
Strengthen internal controls, audit readiness, and regulatory compliance to reduce risk and support accurate, transparent nonprofit financial management.
Oversee day-to-day finance functions, reporting workflows, and accounting coordination to ensure reliable information reaches leadership on time.

We review reporting, cash flow, budgeting practices, internal controls, staffing structure, and immediate risks to understand where your nonprofit needs stabilization and executive attention first.
See how nonprofit leaders gain clarity, continuity, and stronger financial decision-making with experienced interim support.
Nonprofits rely on us for practical, executive-level financial leadership tailored to real operational needs.
Dedicated nonprofit financial leadership expertise supports mission-driven organizations with sector-specific reporting and governance needs.
Right-sized interim CFO engagement gives your organization executive guidance without full-time overhead or long commitments.
Clear, actionable reporting helps executives and boards understand performance, risks, and strategic financial priorities.
Backed by over 25 years of finance and accounting experience across transitions, growth, and operational complexity.
Experienced nonprofit finance leadership you can trust.

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.
An interim CFO provides temporary executive financial leadership during a transition, vacancy, growth phase, or period of financial complexity. The role typically includes overseeing budgeting, forecasting, cash flow, board reporting, internal controls, audit readiness, and strategic planning. For nonprofits, an interim CFO also helps align financial decisions with funding requirements, compliance obligations, and mission priorities while maintaining continuity across the finance function.
Talk with an experienced nonprofit finance advisor today.
Seasoned finance and accounting leadership
Focused expertise for mission-driven organizations
Clear financial insights for governance
Share your organization’s current finance challenges, transition needs, or reporting goals, and we’ll outline practical next steps.
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.