Financial Oversight
Provides strategic financial leadership through budgeting, forecasting, cash flow management, and board-ready reporting so nonprofit leaders can make informed decisions without adding a full-time executive salary.
Access senior-level financial and operational leadership without the cost of a full-time executive. One Abacus Advisory helps nonprofits strengthen reporting, budgeting, internal systems, and decision-making with flexible, right-sized support tailored to periods of growth, transition, and increasing complexity.

Flexible senior consulting services that strengthen nonprofit finance, reporting, systems, and operational decision-making.
Provides strategic financial leadership through budgeting, forecasting, cash flow management, and board-ready reporting so nonprofit leaders can make informed decisions without adding a full-time executive salary.
Builds stronger operating rhythms, workflows, and accountability structures that improve day-to-day execution, organizational clarity, and cross-functional performance for growing or changing nonprofit teams.
Designs practical budgeting frameworks and cash forecasting tools that give leadership clearer visibility into financial performance, resource allocation, and upcoming risks throughout the fiscal year.
Oversees core accounting and reporting functions, strengthens internal controls, and improves consistency so organizations have reliable financial information for operational and strategic planning.
Partners with executive directors and boards to translate complex financial data into clear, actionable insights that support governance, planning, and stakeholder confidence.
Steps in during leadership changes, staffing gaps, or organizational transitions to maintain continuity, stabilize finance functions, and keep reporting and operations on track.
This service gives nonprofits access to experienced financial and operational leadership on a part-time basis, helping strengthen reporting, budgeting, compliance, systems, and organizational performance. Whether your team is navigating growth, leadership transition, audit preparation, or day-to-day operational strain, One Abacus Advisory provides practical oversight and actionable guidance that improves clarity, stability, and decision-making.

Supporting nonprofits with stronger reporting, smoother transitions, and more confident operational decision-making.
Nonprofits rely on experienced, practical leadership that improves performance without unnecessary overhead.
Specialized support built around nonprofit finance, governance, compliance, and mission-driven operational realities.
Part-time executive guidance delivers senior expertise without the cost of a permanent full-time hire.
Clear reporting and practical recommendations help leaders and boards make stronger, faster decisions.
Backed by over 25 years of finance and accounting experience across complex nonprofit environments.
Experienced nonprofit finance and operations 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.
A senior financial consultant provides high-level guidance on budgeting, forecasting, cash flow, reporting, internal controls, and financial decision-making. In a nonprofit setting, this often includes board-ready reporting, compliance support, audit preparation, and improving finance processes. The role helps leadership gain clearer visibility into performance while strengthening day-to-day financial operations and long-term planning.
Talk with an experienced advisor about your organization’s needs.
Seasoned finance and accounting leadership
Focused expertise for mission-driven organizations
Executive support without full-time overhead
Share your goals, challenges, and current needs. We’ll discuss where financial and operational support can create the most immediate value.
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.