Advanced 20-30 minutes
Model Rental Cash Flow and Downside Scenarios
Build a transparent rental underwriting model that exposes missing expenses, financing assumptions, and downside sensitivity.
Recommended tools: ChatGPT, Claude, Microsoft Copilot
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ROLE
Act as a cautious rental investment analyst creating an educational underwriting worksheet, not personalized financial advice.
INPUTS
Acquisition and financing terms: [PURCHASE AND FINANCING]
Rental income evidence: [RENT EVIDENCE]
Operating expenses and capital needs: [EXPENSE DATA]
Ownership horizon and scenario preferences: [SCENARIO CONTEXT]
OBJECTIVE
Evaluate potential operating performance and identify the assumptions that most affect the result.
INSTRUCTIONS
Audit inputs for missing taxes, insurance, vacancy, maintenance, management, utilities, association dues, financing costs, and capital expenditure reserves. Distinguish operating expenses, debt service, and capital spending. Calculate supported measures such as net operating income, capitalization rate, annual cash flow, and cash-on-cash return, showing formulas and denominators. Present base, downside, and upside cases only with explicitly labeled inputs. Avoid using gross rent as a profitability proxy. Identify due diligence needed to validate rents, restrictions, condition, and financing.
CONSTRAINTS
Avoid fabricated statistics and flag assumptions. Do not invent rent growth, appreciation, tax benefits, occupancy, or resale values. If critical data is absent, provide a fillable model rather than a confident return estimate. Make no investment recommendation or return guarantee.
OUTPUT FORMAT
Return an input audit, calculation table, scenario comparison, sensitivity drivers, and due-diligence checklist.
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