Deal analysis is the single most important skill in real estate investing. A great deal poorly analyzed becomes a money pit, while a mediocre-looking property properly analyzed can yield exceptional returns. This guide walks you through every component of a thorough deal analysis, whether you are wholesaling, flipping, or buying rental properties.
Understanding After Repair Value (ARV)
After Repair Value is the estimated market value of a property after all renovations are complete. Accurate ARV calculation is the foundation of every deal analysis because every other number flows from it. To calculate ARV, pull 3-5 comparable sales within a half-mile radius that sold within the last 90 days. Adjust for differences in square footage, bedroom and bathroom count, lot size, and condition. Weight the comps based on similarity — a nearly identical property across the street is worth more than a somewhat similar property a mile away. In 2026, AI-powered comp tools can automate much of this process, but experienced investors always verify the AI suggestions against their local market knowledge.
Calculating Repair Costs Accurately
Underestimating repairs is the number one reason real estate deals lose money. A systematic approach to repair estimation uses per-square-foot costs for major categories: roof ($4-8/sqft), kitchen remodel ($80-200/linear ft of cabinetry), bathroom renovation ($5,000-15,000 per bath), flooring ($3-8/sqft installed), exterior paint ($1.50-3/sqft), and HVAC replacement ($4,000-8,000 per system). Always include a 10-15% contingency buffer for unexpected issues like hidden water damage, asbestos, or structural problems. Walk the property with a contractor whenever possible, and maintain a running database of actual repair costs from your completed projects to improve future estimates.
The 70% Rule and Maximum Allowable Offer (MAO)
The 70% rule is the industry-standard formula for calculating your Maximum Allowable Offer: MAO = (ARV x 0.70) - Repair Costs. For example, if a property has an ARV of $250,000 and needs $40,000 in repairs, your MAO is ($250,000 x 0.70) - $40,000 = $135,000. This formula builds in margin for closing costs, holding costs, real estate commissions, and profit. Wholesalers typically use a lower multiplier (65%) to account for their assignment fee while ensuring the deal still works for the end buyer. In hot markets, some investors push to 75-80%, but this dramatically increases risk and leaves little room for error.
Holding Costs and Hidden Expenses
Beyond purchase price and repairs, every deal carries holding costs that eat into profit: property taxes (prorated monthly), insurance ($100-300/month), utilities ($150-300/month), loan interest (if financed), and HOA dues. A typical flip takes 4-6 months from purchase to sale, so these costs add up quickly. Additionally, budget 5-6% of sale price for agent commissions and 2-3% for closing costs on both the buy and sell side. Experienced investors model three scenarios — best case, expected case, and worst case — to understand their risk exposure before making an offer.
Using Technology to Analyze Deals Faster
Speed matters in real estate investing. The first investor to present a credible, well-structured offer often wins the deal. AI-powered deal analysis tools can pull comps, estimate repairs, calculate MAO, and project profit margins in seconds rather than hours. Platforms like VistaClose integrate deal calculators directly into the CRM, so investors can run numbers while still on the phone with a seller. This capability transforms the analysis process from a time-consuming bottleneck into a competitive advantage, allowing investors to evaluate and make offers on more properties with greater confidence.