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Finance Case Study

The property tripled in value. The partners roughly broke even. Here is why.

I co-founded a three-person LLC that bought a four-unit rental property in Texas and ran the full cycle: buy, renovate, refinance, rent, sell. When it ended, nobody could say what each partner had actually made. So I reconstructed the entire capital history from primary documents and calculated it.

2021 to 2026 · Four and a half years · Written from bank records, loan servicer ledgers, closing statements, and tax filings

On paper the deal worked. The property appraised at roughly triple our purchase price and sold at a 200%+ gain over the 2021 to 2026 hold.

But when we dissolved the partnership, none of us could answer the basic question: what did each partner actually make? Money had moved through five institutions. A personal account had doubled as the operating conduit. The renovation had finished 72% over our own signed contract, despite being fully funded with a cushion. The flattering answer floating around was a small profit. Nobody could prove it.

I reconstructed the complete capital history from primary documents: bank exports, dozens of statements, closing records, loan servicer ledgers, tax filings, property manager reports, even a group-chat agreement between partners.

The method mattered more than the volume:

Then I audited the ledger against the sources a second time, treating my own earlier conclusions as claims to be tested. That pass corrected three of my own figures, confirmed the rest, and caught a hardcoded plug buried inside the renovation budget that every downstream number had inherited. One full year, rebuilt from monthly statements, reconciled to the closing balance to the penny.

The evidence overturned the accepted story. The deal was roughly break-even for me personally, not profitable. I would rather own that number than a flattering guess.

The asset was never the problem. The renovation created real value and the property sold near its peak appraisal. The capital structure consumed it:

The original pro forma showed why all of this was knowable in advance. It modeled debt service on the loan we were replacing and property management at zero. It projected a comfortable annual profit. Reality was negative from the month the new loan funded.

All three partner accounts settled to the dollar. The entity dissolved with no disputes.

The lasting output is a decision rule: run the debt service math before the leverage decision, not after. Every failure in this deal was arithmetic that could have been done in advance. None of it required expertise that was out of reach. It required running four numbers before signing.

The Tool It Produced

BRRRR Deal Stress-Tester

A public calculator that leads with where a deal breaks, not the best case: full-cycle modeling, stress heatmaps, and plain-English verdicts under every metric. I built it because no calculator showed me where this deal would break before closing.

Try the stress-tester →