Why It Matters
MAO answers the question every buyer of distressed real estate must answer first: what is the most I can pay and still make money? It combines the property's post-renovation value, the cost to renovate it, any wholesale fee owed to a middleman, and the profit margin required to make the deal worth doing — all expressed as a single purchase-price ceiling.
At a Glance
- MAO sets the maximum purchase price before profit evaporates
- Formula: ARV × Target Percentage − Rehab Cost − Wholesale Fee
- Target percentage is typically 70% for fix-and-flip investors
- Lowering rehab estimates or raising the target percentage both inflate MAO — increasing risk
- MAO is calculated, not negotiated — discipline here protects every deal
- Used by flippers, BRRRR investors, and wholesalers alike
- A lower MAO offer that gets accepted beats a higher offer that kills the margin
MAO = ARV × Target Percentage − Rehab Cost − Wholesale Fee
How It Works
MAO starts with the After Repair Value (ARV) — the price the property should sell for (or appraise at, for a refinance) once all work is complete. That figure is multiplied by a target percentage, which represents the share of ARV an investor is willing to put into the acquisition. The remaining share covers profit, holding costs, financing costs, and a buffer for surprises.
From that product, two costs are subtracted: the estimated rehab cost and any wholesale fee owed if the deal was sourced through a wholesaler. What remains is the most the investor can pay and still hit the target return.
The formula: MAO = ARV × Target Percentage − Rehab Cost − Wholesale Fee
Target percentage by strategy:
- Fix-and-flip: typically 65–70% of ARV
- BRRRR investors refinancing: often 75% of ARV (the lender's max LTV becomes the ceiling)
- Wholesale assignment: 60–65% of ARV to leave room for the end buyer's margin
Each variable's job:
- ARV is the ceiling on total value the property can generate. It must come from sold comparable properties — not wishful thinking.
- Rehab cost is the total contractor budget including materials, labor, permits, and a contingency. Understating it is the single most common way investors overpay.
- Wholesale fee is deducted only when buying from a wholesaler. On direct-to-seller deals it is zero.
- Target percentage absorbs all the costs not explicitly broken out: financing, holding, closing, selling, and the profit itself.
Sensitivity: MAO is highly sensitive to rehab estimates. A $10,000 underestimate in rehab is a $10,000 overestimate in what can safely be paid for the property. Many investors add a 10–15% contingency to their rehab estimate before plugging it into the formula.
Real-World Example
Nadia is evaluating a distressed single-family home she found through a wholesaler. The comparable sales in the neighborhood put ARV at $220,000. Her contractor walked the property and estimated the full renovation — demo day tearout, structural framing repairs, new drywall throughout, flooring replacement, and updated countertops — at $48,000. The wholesaler's assignment fee is $8,000. Nadia uses a 70% target for her fix-and-flip model.
MAO = $220,000 × 0.70 − $48,000 − $8,000 MAO = $154,000 − $48,000 − $8,000 MAO = $98,000
The wholesaler is asking $105,000. That is $7,000 above Nadia's MAO. She has two options: pass on the deal or negotiate the price down to $98,000 or below. She goes back to the wholesaler, explains her numbers, and they agree to $97,500. The deal works. If she had paid the original asking price, $7,000 of projected profit would have evaporated before construction even began.
Pros & Cons
- Creates an objective, math-based ceiling that removes emotion from offer decisions
- Forces investors to estimate rehab costs thoroughly before committing to a price
- Protects profit margin even when unexpected costs arise during renovation
- Works equally well for flips, BRRRR deals, and wholesale assignments
- Easy to run as a quick pre-screening filter before investing serious due diligence time
- Keeps investors disciplined in competitive markets where overpaying is tempting
- Only as accurate as the ARV and rehab estimates feeding it — garbage in, garbage out
- A rigid 70% rule can cause investors to pass on deals that would work at 72–73% with accurate rehab numbers
- Does not account for financing structure, hold time, or carrying costs explicitly — those are embedded in the target percentage and can be understated
- Newcomers often underestimate rehab costs, which makes their MAO higher than it should be and puts deals at risk
- Market shifts between offer and close can erode ARV, making a deal that penciled at offer suddenly marginal at sale
Watch Out
Never adjust the target percentage upward to make a deal work. That move shifts risk from the deal to the investor. If the numbers only work at 75% when your model requires 70%, the deal does not work.
Rehab estimates deserve the most scrutiny. Walk the property with a contractor — not a handyman or a quick visual — and get a line-item scope before calculating MAO. Deals won on bad rehab estimates are the leading cause of flip losses.
ARV comps must be recent and truly comparable: same neighborhood, similar square footage, similar finish level, sold within the last three to six months. A comp from eighteen months ago or two zip codes away is not a reliable ARV anchor.
Finally, wholesale fees are real costs. A $10,000 assignment fee is ten thousand dollars that cannot go toward rehab or profit. Factor it in from the first calculation, not as an afterthought.
The Takeaway
MAO is the number that separates disciplined investors from hopeful ones. Calculate it before every offer, hold the line when a seller pushes back, and walk away from any deal where the math does not close. The best deals are made at the right price — and the right price starts with MAO.