Terms of Service

These terms are between you and Gribbons Group Corp.. RE Underwrite Lab is a product of Gribbons Group Corp. By creating an account you agree to these terms and the Privacy Policy.

These terms are governed by the laws of the State of Colorado, without regard to conflict-of-law rules. Courts in Colorado may hear disputes arising out of these terms.

RE Underwrite Lab is a web app with a fix-and-flip calculator, a short-term rental calculator, a multifamily pro forma, an investor mortgage calculator, saved deals, and branded PDF reports. It does not include comps, a line-item repair estimator, seasonality, BRRRR, wholesale, a single-family buy-and-hold calculator, or a native app.

Some content and tools may be generated or assisted by artificial intelligence. Results are estimates that can contain errors. Verify all figures independently. This is not financial, legal, tax, or investment advice. Consult licensed professionals.

You need an email address and either a password of at least 8 characters or a one-time sign-in link. You are responsible for activity under your login.

We may close an account that abuses the service, tries to break it, or uses it to break the law.

A new account includes a 48-hour free trial. When billing is enabled, the plan is $19 a month after the trial. You can cancel anytime. Cancellation and refund rules are on the Refunds page.

Until card checkout is turned on, the plan page says billing is coming soon. The trial still runs. We will not charge a card we do not have.

Do not attempt to access another person's deals, probe the service for vulnerabilities, overload it, or upload anything you do not have the right to use in a PDF logo or photo.

You keep the numbers you enter. You give us permission to store them so we can show them back to you and put them in a PDF you request.

The calculators and PDFs are educational estimates from your inputs. They are not financial, legal, tax, or investment advice, and they are not an offer to buy or sell property. Consult licensed professionals and verify every figure before you rely on it.

Gribbons Group Corp. does not guarantee profit, cash flow, financing, or an appraisal.

Email sean@tgsbrokerage.com.