Functional DemoAnalytics System

Real Estate Exit Strategy Simulator

Enter a property once and compare flip, hold, Airbnb, seller finance, BRRRR, and wholesale exits side by side.

Exit Simulator dashboard for Demo Acquisitions with total deals, average Deal DNA score, and active opportunities tiles, a best-opportunities card for 123 Maple Street, and a pipeline panel. — Exit Simulator dashboard

What it solves

Most real estate investors analyze deals in spreadsheets or single-purpose calculators, modeling one strategy at a time. That is slow, uses inconsistent assumptions, and leads to poor decisions. Investors do not just need to know whether a deal works; they need to know which exit strategy works best and what could make it fail.

Built for Real estate investors, house flippers, buy-and-hold and BRRRR investors, short-term rental operators, wholesalers, and small acquisition teams.

Overview

The user enters one property acquisition, and the system models seven exit strategies (flip, long-term hold, Airbnb/STR, seller finance, BRRRR, BRRRR repeat, and wholesale fallback), each returning net profit, cash flow, cash required, ROI, capital recovery, risk, and a deal score. A winner engine ranks strategies against the investor's chosen goal and explains why the top strategy wins, producing a primary/backup/emergency exit stack and a 0-100 Deal DNA Score. A sensitivity simulator stress-tests assumptions live, a risk heat map grades category risks, and users can export an investor-grade report. AI explanations are grounded strictly in stored assumptions and calculated outputs.

What this demonstrates

It proves a suite of deterministic, isolated, testable financial calculation engines for seven distinct strategies plus a ranking layer that weights outputs by investor goal, real-time sensitivity recalculation, and grounded AI narrative that never invents numbers. It also implements subscription tiers and PDF report generation.

What makes it different

This is not a basic calculator. It is a decision engine: enter one property once and instantly compare every exit strategy side-by-side to know the best move before you buy.

Never output on invalid assumptionsNo financial results from missing or invalid required inputs.
Never fail silentlyCalculations do not silently break.
Never hide riskCritical risk warnings are always shown.
AI never invents numbersAI uses only stored assumptions and calculated outputs.
Calculation logic is isolatedEngines are deterministic, testable, and separate from the UI.

Core capabilities · 15

Flip Engine
Models net profit, ROI, break-even resale, and maximum allowable offer.
Long-Term Hold Engine
Models cash flow, cap rate, DSCR, equity, and loan paydown.
Airbnb / STR Engine
Models net revenue, occupancy break-even, and furnishing payback.
Seller Finance Engine
Models note income, balloon value, and risk-adjusted return.
BRRRR Engine
Models capital recovered, cash left in deal, and infinite-return flag.
BRRRR Repeat Engine
Projects repeatable acquisitions, portfolio size, and capital velocity.
Wholesale Fallback Engine
Models assignment fee, buyer max offer, and emergency exit value.
Strategy Winner EngineStrategy Winner Engine
Ranks and explains the best strategy by investor goal.
Deal DNA ScoreDeal DNA Score
Scores overall deal quality 0-100 across eight components.
Exit Stack RecommendationExit Stack
Produces primary, backup, emergency, and avoid exits.
Investor Goal Mode
Re-ranks strategies by profit, cash flow, capital recovery, or risk.
Risk Heat Map
Grades rehab, financing, refinance, resale, and liquidity risk visually.
Sensitivity Simulator
Live sliders that restress assumptions and update rankings.
Reporting Engine
Generates lender- and partner-ready deal reports.
AI Explanation Layer
Explains the deal and what could break it using real numbers only.

How it works

Create a deal with property, price, ARV, rehab, and financing
System models all seven exit strategies
Each strategy returns profit, cash flow, ROI, and risk
Strategies ranked by selected investment goal
App explains why the winning strategy won
Adjust assumptions with sliders to stress-test
Rankings update live
Export a lender or partner decision report

How the score works

Deal DNA Score

Margin strength
Profit margin relative to project cost.
Cash flow strength
Monthly and annual cash flow quality.
Capital efficiency
Cash required versus returns produced.
Debt safety
Sensitivity to financing and rate exposure.
Refinance viability
Whether a refinance realistically recovers capital.
Exit flexibility
Number of viable fallback exits.
Downside protection
Resilience if assumptions worsen.
Assumption confidence
Strength of the underlying market assumptions.

Key screens

DashboardDeal overview and entry point.
Deals ListSaved deals and drafts.
New DealGuided property and assumption input.
Deal CockpitWinner card, comparison grid, exit stack, and risk heat map.
Sensitivity SimulatorSlider-based live stress testing.
Report ExportInvestor-grade PDF and shareable report.
Team WorkspaceComments, roles, and pipeline stages.
SettingsAccount, billing, and branding.

Data model

User
Organization
Deal
DealAssumption
FinancingProfile

Screens · 4

Deal analysis for 123 Maple Street showing a Deal DNA Score of 79 and a Best Strategy panel recommending Seller Finance with net profit, cash flow, cash required, cash-on-cash, and IRR metrics. — Deal DNA and best strategy

Strategy comparison grid of seven exit strategies (Seller Finance, Long-Term Hold, Flip, Airbnb/STR, BRRRR, BRRRR Repeat, Wholesale) each with net profit, cash required, cash flow, COC, risk, and goal-fit score. — Strategy comparison

Deal detail lower section with an Exit Stack of primary/backup/emergency/avoid strategies, a color-coded risk heat map, a sensitivity simulator with assumption sliders, and AI explanation buttons. — Exit stack, risk map, and sensitivity

Deal assumptions side panel over the deal view with editable property basics, acquisition, rehab, and financing fields such as purchase price, rehab budget, loan type, and interest rate. — Deal assumptions panel

How it is built

A Next.js/React app with calculation logic in dedicated service modules, backed by Postgres through Prisma. Custom JWT sessions handle auth; Stripe (optional, with a demo-mode fallback) powers subscription billing; Resend sends transactional email; Upstash Redis provides optional distributed rate limiting; and an optional Anthropic key drives grounded AI explanations.