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Fairline

Fairline is a deal calculator for a house you might buy and fix. It answers four questions in the browser: the most you can pay and still leave a margin, what the house could sell for after repairs, a neighborhood worksheet that is not an appraisal, and the profit left after a fix and flip. The result updates beside the numbers you type. Nothing you type leaves the browser.

Fairline ↗
TL;DR
  • Customer: Someone pricing an offer, a repaired value, or a fix-and-flip profit.
  • Problem: The most you can pay, the repaired value, and the profit after costs get mixed up in a spreadsheet.
  • Solution: Four calculators: maximum offer, repaired value from recent sales, a neighborhood worksheet, and flip profit.
  • Outcome: On the sample offer, a $200,000 repaired value at 70%, minus $30,000 of repairs and a $10,000 fee, leaves a $100,000 maximum offer.
  • Strategic win: The offer, the worksheet, and the flip profit sit in one place, and the numbers stay on your device.
Fairline deal calculator showing a $100,000 maximum offer from a $200,000 repaired value, 70 percent, $30,000 of repairs, and a $10,000 fee
The problem

The offer, the value, and the profit are three different numbers.

A buyer, a wholesaler, or an agent can start from the same house and still need a different answer. One number is the most you can pay. Another is what it could sell for after repairs. A third is what is left after the flip costs.

The margin disappears Paying the repaired value leaves no room for repairs, a fee, or the buyer.
Comps disagree Three recent sales can point at three prices. The weaker one is the careful offer.
The flip hides costs A sale price minus the purchase still has rehab, holding, the loan, and selling costs inside it.
$100,000 Sample maximum offer
70% Sample share of the repaired value
$26,920 Sample flip profit after costs
4 Ways to read the same deal

Why it was hard

An offer is not the repaired value. A neighborhood guess is not an appraisal. A flip can look profitable until holding, the loan, and the sale costs come out.

  • The most you can pay has to leave the buyer a margin and still cover your fee
  • Recent sales do not agree, so the weaker sale is the safer repaired value
  • Beds, baths, age, condition, and a garage move a price per square foot
  • Purchase, rehab, holding, loan points, interest, and selling costs all come out of the profit

What you get

  • ✓Maximum allowable offer: repaired value times the buyer target, minus repairs, other costs, and your fee
  • ✓After-repair value from recent sales, using the low price per square foot when the sales disagree
  • ✓A neighborhood worksheet from price per square foot, then beds, baths, condition, age, and a garage
  • ✓Fix-and-flip profit after purchase, rehab, holding, the loan, and the sale
  • ✓The numbers stay in the browser. Nothing you type is sent away
01

The most you can pay

On the sample, the repaired value is $200,000. At 70% that is $140,000 all-in for the buyer. Take off $30,000 of repairs and a $10,000 fee and the maximum offer is $100,000. The same screen also shows 65% and 75%. At these numbers, the page says there is room for an offer.

Open Fairline →
02

Two ways to a value

Recent sales become a price per square foot. The sample uses the low end, $192,857, because a buyer will underwrite the weaker sale. The neighborhood worksheet is separate: it starts from a price per foot, then beds, baths, condition, age, and a garage. The sample worksheet is $288,000. It is not an appraisal.

See the calculator →
03

What a flip keeps

The sample flip sells at $200,000. Purchase, rehab, holding, loan points, interest, and selling costs add up to $173,080. Profit is $26,920. Cash put in is $31,080, and the return on that cash is 87%.

Real estate calculators →
In short

Four answers for one house. The numbers stay on your device.

Fairline shows the most you can pay, the repaired value, a neighborhood worksheet, and the profit left after a flip.

These figures are the samples already filled in on Fairline. The maximum offer, the comp value, and the neighborhood worksheet are separate reads. The worksheet is not an appraisal.

Open Fairline ↗

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