Maximum Allowable Offer: How To Make A Profitable Real Estate Offer

You just got off the phone with a motivated seller. The house needs work, they want to move fast, and they asked the one question you have to answer well: what will you pay?

Guess too high and you lose money on the deal. Guess too low and they hang up and call the next investor. Most people answer it with a napkin, a Zillow tab, and a gut feeling.

There's a better way. You've already done the work to find and score the lead — the offer is where you turn it into a deal. SiteStakes gives you the deal tools to go from "I just got a lead" to a number you can defend, your maximum allowable offer, in minutes. Here's how the pieces fit together.

A smart offer isn't a guess. It's four numbers working together:

• What the house is worth fixed up — the after-repair value (ARV)
• What it'll cost to fix — the repair estimate
• What you need to make — your profit or assignment fee
• What's actually true about the property — its value, equity, and what's still owed

SiteStakes builds each of these into your back office, so the offer calculates itself. No spreadsheets, no napkins, no "I'll get back to you" while a competitor swoops in.

Start by pulling the property report. One click pulls the property's public records straight into your back office:

• Estimated value (AVM) — a starting point for market value
• Equity and mortgage balance — how much room there is, and what's still owed
• Owner info and sale history — who owns it and what it last sold for
• The basics — beds, baths, square footage, year built, lot size

Now you're walking into the offer already knowing what they owe and how much room you have to work with, instead of finding out the hard way.

Next, figure out what the house is worth once it's fixed up. That's the ARV, and it comes from comparable sales.

You add the comps you trust. Enter recent sales near the property, and you stay in full control of which sales count, so one weird flip down the street doesn't wreck your math. From those comps, the ARV calculator gives you three numbers:

• Conservative — the safe estimate
• Base — the likely estimate
• Aggressive — the best case

Working from the conservative number keeps you honest and protects your margin.

Then estimate what it'll cost to fix. The repairs estimator gives you two ways to do it, depending on how much you know:

1. Quick estimate — a per-square-foot number based on condition, from light cosmetic work to a heavy gut. Perfect for a fast ballpark on the phone.
2. Detailed estimate — line items by category, so you can scope out the roof, HVAC, kitchen, and everything else for a real number.

Add a contingency buffer on top, and surprises behind the drywall don't eat your whole profit.

Now the real estate offer calculator ties all three numbers together and does the math for you. Pick your strategy:

• Wholesale — your MAO is ARV × 70% − repairs − a $10,000 assignment fee (you're assigning the contract, so the fee comes out)
• Fix & flip — the same 70% math without the assignment fee, since you're keeping the property instead of assigning it

The result is your maximum allowable offer (MAO) — the most you can pay and still hit your numbers. The math is laid out right on the screen, so there's no black box:

Here's what that looks like on a real deal. Say your comps put the ARV at $300,000 and the repairs come to $45,000:

That $155,000 is your offer price ceiling. Offer at or below it and your margin is protected; go above it and you're eating into your profit.

It also does two things a napkin can't:

• Shows your offer as a percentage of market value, so you see instantly whether the deal makes sense
• Flags the mortgage balance, so you never accidentally offer below what's owed without realizing it

And the number isn't locked. Type whatever you want into the "Your Offer" field and watch how it stacks up against the ARV in real time.

Knowing how to calculate maximum allowable offer starts with the 70% rule: don't pay more than 70% of a property's after-repair value, minus repairs. That built-in 30% leaves room for your profit, holding costs, and the unexpected, and that cushion matters more than ever.

• ATTOM reports the typical home flip returned about 25.5% gross in 2025, the thinnest margin since 2008, and that's before rehab and holding costs.

When margins are that tight, paying even a little too much can erase the whole deal, which is exactly what a disciplined offer protects against.

The 70% rule in real estate is a starting point, not a law, and SiteStakes lets you adjust the MAO formula for your market and your deal.

Once you've got your number, save the offer and let SiteStakes track it for you in your CRM. Every offer moves through clear stages:

pending → reviewing → countered → accepted → rejected

When the seller counters, you log the counter and keep negotiating without losing the thread.

And here's the part that keeps everything connected: every offer automatically creates a deal in your CRM, so it flows into your deals pipeline right alongside your other live opportunities.

At a glance you always know which offers are out, which came back, and which ones closed, without a separate spreadsheet to babysit.

Here's a bonus most investors miss. The ARV, repairs, and offer math don't just sit in your private analysis.

When you publish the property as a listing, those numbers feed the listing detail page, so cash buyers see the after-repair value, repair estimate, and investment math laid out professionally. Your analysis becomes your marketing, and you look like you know exactly what you're doing, because you do.

You can also export the whole deal analysis to a PDF to send to a buyer or partner.