I'm analyzing my first potential commercial real estate investment, a small strip mall in a stable suburban area. The seller is presenting a pro forma with a projected cap rate that seems attractive, but I'm skeptical because it's based on future rental increases and not the current, actual net operating income. I've calculated the cap rate myself using the current rents and estimated operating expenses, and it comes out significantly lower. For experienced investors, how do you typically verify the NOI figures provided by a seller? What specific line items do you scrutinize most closely, like property management fees, maintenance reserves, or vacancy rates, to get to a realistic going-in cap rate? I want to make sure I'm not overpaying based on optimistic projections.
You're not alone. A practical, repeatable way to vet NOI is to treat the seller's pro forma as a hypothesis until proven. Start by collecting 2–3 years of operating statements and a current rent roll. Build a baseline NOI using actual rents, occupancy, and operating expenses (exclude debt service and capex). Then normalize for one-time items: unusually low maintenance, non-recurring income, capex that should be capitalized rather than expensed. Recompute a 'stabilized' NOI using market rents for the space and a conservative vacancy rate. Compare this to the seller's pro forma; if there’s a big gap, ask for adjustments or price relief. Finally run a quick sensitivity: +/- 5–10% in occupancy and rents to see impact on NOI and cap rate. This gives you a credible going-in cap rate and identifies the main risk levers.
Key line items to scrutinize: vacancy/credit losses, concession allowances, CAM/management fees, maintenance and repairs, utilities, insurance, property taxes, and reserves for replacements. Distinguish 'operating expenses' from 'capital expenditures'—properly, NOI should subtract typical maintenance and admin costs but exclude capex; the seller's pro forma may bundle capex or call certain capex a regular expense. Look for non-recurring items (hedge your bets). Also review other income (parking, laundry) and any rent escalations or TI allowances. Ask the seller for a detailed breakdown of every expense line item and the sources used to project future figures. If you can, run the math both with current expenses and with industry-standard expenses for similar properties to gauge reasonableness.
Going-in cap rate vs stabilized cap rate: treat the pro forma as 'future' but the going-in cap rate should be based on current NOI. Compute both: Cap_in = NOI_current / Price. Cap_proforma = NOI_projected / Price. If Cap_proforma is much lower than Cap_in, you’re betting on future improvements. Do scenario analysis with 3 cases: current NOI flat, moderate growth, and conservative growth; show how price would need to adjust to keep acceptable cap rates. This helps you negotiate and avoid overpaying.
Due diligence workflow: (a) gather rent rolls, leases, service contracts, tax bills, insurance, maintenance history; (b) schedule a property inspection and a cost/repair backlog; © verify occupancy and tenant mix; (d) request third-party opinions for structural integrity, environmental, and systems; (e) confirm whether any upcoming capital expenditures are funded and how. Use a spreadsheet to track items and assign owners. If possible, bring in a broker or a real estate attorney to sanity-check the LOI and the pro forma.
Red flags in pro formas you should push back on: unrealistic rent escalations or occupancy that assumes 100% occupancy long-term; aggressive synergies from dynamic rents; huge maintenance reserves or capex allowances that hide ongoing costs; lack of detail on operating expense drivers; no discussion of vacancy, concessions, or TI/LC; missing disclosures about debt service or reserve accounts. If any concerns, request a price adjustment, contingencies, or holdbacks until you verify the numbers with your own diligence.