
Reef
Reef AI · Coding · Productivity
Reef is an AI real estate underwriting platform that turns offering memorandums, rent rolls, and ARGUS files into Excel models and investment committee memos from one source of truth.

About Reef
What Is Reef
Reef is an underwrite-to-IC platform built by Reef AI for commercial real estate finance teams. It collects the paperwork behind a deal, such as an offering memorandum (OM), rent rolls, and ARGUS exports, then carries that data through underwriting, review, and committee output. The pitch is simple: the deal arrives in fragments, and the decision should not.
The software targets the production side of underwriting rather than the judgment side. Analysts still decide what a deal is worth, but Reef removes the manual rebuilding that slows a bid, so a working model and a first draft memo are ready in hours instead of weeks. The company claims about 70% time savings on IC memo production, a figure it reports itself and one that firms should verify against their own deal volume.
The main limit is scope. Reef is not a property data provider, a pipeline tracker, or an ARGUS replacement, so it works alongside tools like CoStar and Dealpath instead of standing in for them. Teams that want a cheaper DIY spreadsheet flow, or that underwrite only one deal a month, may not need a governed platform like this.
Getting Started
- Book a demo and have your firm's standard Excel underwriting templates on hand, whether multifamily, office, industrial, or retail.
- Set up a deal and upload the full package in one place. Include the OM PDF, Excel supplements, the ARGUS run, rent rolls, broker financials, and support documents.
- Let the extraction engine read the files and build a working Excel model from your template, enriched with market benchmarks and property tax context.
- Review the flagged risks, such as tenant concentration or rents above the market benchmark, and adjust assumptions in the model.
- Generate a first-pass IC memo, edit it in the rich text editor, run the AI proofreader, and export a branded package for committee review.
Product Information
A quick look at Reef's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Acquisitions analysts
- Asset management teams
- Investment committee members
Tasks
- Build an Excel underwriting model
- Writing an IC memo
- Running market and tax benchmarks
Scenarios
- A 60-page multifamily OM lands on a Monday
- Comparing a past deal under new assumptions
- A partner asks why a cap rate changed
Key features
Unified Deal Intake
Reef pulls OMs, Excel files, ARGUS runs, rent rolls, financials, broker assumptions, and support documents into one intake workflow. Nobody re-keys numbers from a PDF into a spreadsheet by hand. Starting from a single intake record means the rest of the platform works from the same data instead of a scatter of versions.
Automated Underwriting Model Generation
From the extracted deal record, Reef builds a structured Excel model automatically. It's a populated model, not a blank template, and it runs inside your firm's approved structure once you upload that template. The point is speed without abandoning how your team already underwrites.
Built-In Market and Tax Benchmarking
Each deal is grounded against market benchmarks and property tax data for the relevant US market. The platform flags rents that trade materially above or below the benchmark, so the model reflects market reality rather than only the sponsor's narrative. This is where a deal gets a defensible baseline.
Early Risk Flagging
Reef surfaces issues before committee questions appear. It catches tenant concentration, occupancy dependence, rent anomalies, and cross-document inconsistencies as the package comes together. Seeing a single tenant holding 34% of net rentable area before you open the model is very different from finding it in a late review.
IC Memo Drafting and AI Proofreading
When the model is ready, Reef assembles a complete IC memo that synthesizes the deal's thesis, risks, market positioning, and financial summary. You edit it in a built-in rich text editor and apply your firm's branding. Before export, an AI proofreader scans for data inconsistencies, unsupported claims, and internal contradictions.
Model Template Management
Firms upload their approved Excel templates and Reef generates within those standards. You can swap templates on a past deal to compare assumptions, and every template change is tracked with version history. That keeps firm logic, naming, and tabs intact across deals instead of forcing a one-size-fits-all model.
Institutional Memory and Knowledge Graph
Every deal, assumption, and IC decision is stored in a searchable knowledge graph. Teams can find comparable deals by market, asset class, vintage, or sponsor, and answer questions like what cap rates they used in a given market two years ago. Prior deals compound judgment instead of disappearing into folders.
Focus Mode and Regeneration
A side-by-side workspace shows the OM, the model, the benchmark, and the memo at once, so analysts stop juggling four windows. The "time machine" capability takes any past deal, applies current market benchmarks, and regenerates the model and memo with updated data, which helps with portfolio monitoring.
Pros and cons
Pros
- Connects deal intake, model generation, risk flagging, and IC memo into one workflow
- Generates Excel models inside your firm's own uploaded templates
- Adds market benchmarks and property tax context to every deal
- Flags tenant concentration and rent anomalies before committee review
- Keeps a searchable institutional memory across prior deals and decisions
- Records version history behind each assumption change for governance
Cons
- No public pricing, so you have to book a demo and get a quote
- No free tier and no self-serve signup, which rules out casual trials
- Web-only, with no mobile app for reviewing deals on the go
- It works alongside ARGUS, CoStar, and Dealpath rather than replacing them
Frequently asked questions
Reef is an underwrite-to-IC platform for commercial real estate teams. It takes raw deal materials like offering memorandums, rent rolls, and ARGUS files and turns them into a built Excel underwriting model and a committee-ready IC memo. The whole chain stays connected.
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