The broker gave you one version of this deal. Model it your way.
Reading the OM is the easy part. We flag every figure the document leaves unclear or never states, hold the math to 300+ automated tests, and let you test what actually decides the deal: your debt stack, your waterfall, hold or sell.
Free. No password, no card. Your document is deleted as soon as we've read it.
See a sample deal outputHave your own model? Import it (beta) and change any assumption live. Starting from scratch? Start from a template or an empty model. Start a 14-day trial
The trial includes 3 OM imports, 2 spreadsheet imports, and up to 5 live deals. No credit card.
One property. Many possible deals.
The OM is where underwriting starts, not where it ends.
Screen
Upload the OM and see it as a live model, reviewing only the numbers we're not sure about or couldn't find. Change any assumption and watch it recalculate; saving and exporting need an account. Have your own model? Import it on the trial (beta) and check each section before it's applied.
Explore
Build each strategy as a version: long or short-term rent, hold, sell or hybrid, residential, commercial or mixed.
Decide
Add your capital stack and JV waterfall. Compare versions side by side and see what drives the returns.
Present
Send the lender PDF and Excel, and share role-based links: lenders see debt, LPs see returns.
Every revision rebuilt by hand. Or changed in one place.
Without OneStopReal
- 1.Build the Excel model from scratch (3 hours - 5 days)
- 2.Partner wants a different waterfall, rebuild the formulas (3-8 hours)
- 3.Lender wants a sensitivity table, add another sheet, and now every click recalculates the whole workbook (10 minutes)
- 4.Sending Excel to a lender means stripping the equity tabs, so now you maintain a parallel Lender Version (1-2 hours)
- 5.Bank wants a formal package: build the presentation PDF by hand, on top of the model (1-2 hours)
- 6.Someone updates an assumption, everything breaks (FUBAR)
Rebuilt for every revision
With OneStopReal
- 1.Import an Offering Memorandum or a rent roll and review only what the document leaves unclear, or import your existing model (beta) and check it section by section (2-6 minutes)
- 2.Change the waterfall or the exit strategy, everything updates without touching a formula (a few clicks)
- 3.Sensitivity analysis is built in and adjusts as you type (already calculated)
- 4.Share a role-based link: lenders see debt metrics, LPs see returns (2 clicks)
- 5.Run the audit before the meeting, catch DSCR shortfalls and IRR misses before your IC does (seconds)
- 6.Export the Project Summary PDF lender package and the Excel model (one click)
Change it once, everything updates
The math is right. Not approximately right.
AI reads the OM. You review what was unclear or missing. A tested engine does the math: 300+ automated tests on the calculation engine.
Excel you can check
Excel exports lay out every schedule, labeled: costs, debt, interest and principal, and the waterfall. Totals and roll-ups are live formulas.
The methodology is public
Every assumption, derivation, and edge case is documented openly rather than hidden inside a black box.
The auditor runs first
Your deal is checked against your firm's investment thresholds before you walk into the room.
Built for documents you can't afford to leak.
OMs arrive under confidentiality agreements. We treat them that way.
Deleted once it's read
Your document is deleted as soon as we've read it. We keep the figures we extracted, not the file, and delete those after 48 hours unless you create an account.
Each viewer sees their part
Role-based links: lenders see debt metrics and never the waterfall, LPs see returns.
You review only what needs it
We extract the numbers for you. You review the ones we're not 100% sure about, with the text from your document beside them, and anything we couldn't find in the OM.
Built by a finance professional who turns manual work into systems
I started in finance: Section Head in the Budget Department at the Israel Ministry of Finance, then Head of Budget at the Israel Tax Authority and NTA, Head of Reporting and Control at Electra, and Pricing Analyst at Electra Elevators. For the last 11 years I've worked independently, mostly building process automations for companies of every size, big and small, and building financial models for real estate developers and investors.
The two kept pointing at the same problem. The automation work showed me how much a well-built system can replace. The real estate work showed me an industry still making big decisions on fragile, hand-built Excel files that nobody else had checked. OneStopReal is where the two came together.
Daniel Leemor, Founder
MBA in Finance, BA in Economics and Business Administration, The Hebrew University of Jerusalem
Connect on LinkedInOneStopReal vs. Claude for Excel vs. Excel
| Feature | OneStopReal | Claude for Excel | Excel |
|---|---|---|---|
| Starting from the broker's OM | Upload it, review only what's unclear or missing | Prompt it, then check what it built | Retype it by hand |
| Calculation checked | One engine, 300+ automated tests | Each change is yours to check | Yours to check |
| Changing one assumption | Only that input changes, everything recalculates | It can change other cells too, so you review every edit | Trace every dependent formula |
| Versions | Saved versions, compared side by side | Copies of the workbook | Copies of the workbook |
| Ground-up development | Full phase modeling | Formulas it writes, you check | Manual formulas |
| Multi-LP waterfall | Unlimited classes, GP catch-up | Formulas it writes, you check | Highly fragile |
| Live sharing | Role-based portals | Emailing files | Emailing files |
| Bank-ready PDF export | One click | Build it yourself | Manual build |
Starting from the broker's OM
Calculation checked
Changing one assumption
Versions
Ground-up development
Multi-LP waterfall
Live sharing
Bank-ready PDF export
Ground-Up Developers
Phase-aware financing from land to stabilization
Multi-Family and Commercial
For syndicators raising capital and operators scaling portfolios
Analysts and Modeling Freelancers
You bring the judgment. The model stops being the bottleneck.
Plans from $129/month after a 14-day free trial. No credit card to start.
See pricing →Frequently Asked Questions
Can I upload an OM I received under an NDA?
Yes, if your agreement lets you use it for your own analysis of the deal. You confirm this when you upload. We delete the document as soon as we've read it.
Can't I just build this in Excel with Claude for Excel?
You can, and it is good at it. But every change it makes to your workbook is yours to check. Broken formulas are easy to spot; a calculation that is quietly wrong is not. It can also change cells you didn't ask it to touch, and you keep track of every version of the workbook yourself. In OneStopReal, AI only reads the OM. Every number after that comes from one calculation engine checked by 300+ automated tests, and each scenario is saved as a version you can compare side by side.
Can I import my existing Excel model?
Yes. Upload an Offering Memorandum, a rent roll, or an Excel model, and the AI maps the fields. For an OM, anything it is not sure about or could not find is flagged for you to review. Spreadsheet import is in beta: you review every section before it is applied, and because models are built in many different ways, check the mapped values closely before relying on them.
How accurate is the math?
The calculation engine is checked by 300+ automated tests, and our full calculation methodology is published openly.
Can I export to Excel for my client, lender, or CPA?
Yes. Every project exports to a clean Excel proforma and a bank-ready PDF lender package. Excel exports lay out every schedule, clearly labeled, with totals and roll-ups as live formulas. Role-based sharing gives lenders debt metrics only, while investors see the full return picture.
What if I cancel my subscription?
Your projects remain accessible in read-only mode. Export to Excel before canceling to keep working copies.
Is there a free trial?
Yes. 14 days, no credit card required.
What's the difference between Pro and Team?
Pro is single-user - one owner, no collaborators. Team includes one owner plus 5 editor seats, all sharing the same workspace. Additional editor seats can be added to either plan for $55/month. Both plans have the same calculation features.
Do you support international markets?
Yes - real estate models are typically built pre-tax, and the platform's flexible expense structure adapts to jurisdiction-specific costs like stamp duty, property tax, or council tax. Currently supports USD, EUR, GBP, ILS, AUD, AED, NZD, SGD, CAD, CHF, and INR, with additional currencies added on request.
Your next deal is waiting.
See the broker's version of it for free. Then build yours.
Ready to build from scratch? Start a 14-day trial · Book a demo