For rental & BRRRR investors

See the flip and rental case side by side.

Evaluate rehab, rent, cash flow, cash-on-cash return, and resale value in one underwriting workflow — with market data built in and every number updating the moment you change an assumption.

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Buy & hold analysis

820 Antioch Pl

Columbia, SC 29209 · 3/2 · rental
● Cash-flows
Rent estimate
$1,730/mo
Monthly cash flow
+$1,214
Cash-on-cash
14.6%
Total invested
$89,709
Total PITI$515.78
ZIP investment gradeB · 11.8% yield
The problem

Where rental math breaks down

Two spreadsheets, one deal

The flip case lives in one file and the rental case in another, so you never see them together.

Disconnected assumptions

Rehab, rent, financing, and resale don't talk to each other, so a small change means rebuilding the math.

Slow to compare

Testing a higher rent or a lower offer takes minutes of manual edits per scenario.

Inconsistent Buy Boxes

Criteria applied by hand drift from market to market and deal to deal.

Market data elsewhere

Rents, vacancy, and yield live in separate tabs instead of next to the deal.

Hard exit decisions

Without both cases in view, it's tough to know whether to flip it or hold it.

How REIBrain fits

One workflow for flip and hold

Underwrite both exits on the same screen.

1

Screen by Buy Box

Apply one consistent set of criteria across every market you invest in.

You get: the same standard, everywhere.
2

Rehab & ARV

Photo-based rehab plus comp-based ARV feed both the flip and the refinance case.

You get: shared inputs, no re-keying.
3

Rent & market data

Rent estimates alongside HUD fair-market rents and Census market context.

You get: a grounded rent assumption.
4

Cash flow & returns

PITI, monthly cash flow, and cash-on-cash return, recalculated as you adjust.

You get: the hold case in real time.
5

Flip vs. hold, together

Flip profit and ROI next to cash flow and cash-on-cash on one screen.

You get: a clear exit decision.
6

Offer & track

Draft the offer, send from Outlook, and track the deal in your pipeline.

You get: acquisition to close in one place.

Rental investors run on Professional

Flip and hold analysis, rent and market data, comp-based ARV, and unlimited Buy Boxes across markets.

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Questions

Rental & BRRRR FAQ

Where do rent estimates come from? +

Property-level rent estimates via RentCast, shown alongside HUD fair-market rents and Census market data so you can pick a defensible number.

Can I see the flip and hold case together? +

Yes. Flip profit and ROI sit next to monthly cash flow and cash-on-cash return on the same deal, so the exit decision is clear.

Can I change financing and assumptions? +

Rehab, ARV, rent, and offer are all editable, and cash flow and returns recalculate live as you test scenarios.

Does it work across multiple markets? +

Yes — apply one Buy Box across any U.S. ZIP, with sourcing, comps, and market data running nationwide.

Important: Rent estimates, ARV, and cash-flow analyses are decision-support tools, not a substitute for inspections, appraisals, lender terms, or professional due diligence. Verify every figure before committing capital.

Decide flip or hold in one screen.

See rehab, rent, cash flow, cash-on-cash, and resale value together — and change any assumption to watch the math update.