- 01The REIPrime glossary at reiprime.com/glossary has 120+ terms explained with formulas and real examples
- 02CashFlow GPT calculates NOI, cap rate, DSCR, and cash-on-cash return in seconds from your deal inputs
- 03Spend 15 minutes a day with 3 new terms — in 6 weeks you'll be conversational in deal analysis
- 04The calculator handles the math so you can focus on the strategy
Show Notes
Show Notes
I'm Martin Maxwell, and this is Part 3 of our series on the language of real estate investing. You can't negotiate a deal if you don't speak the language. Cap rate, NOI, DSCR — these aren't buzzwords. They're the vocabulary that separates serious investors from people who get talked into bad deals. Two free tools and 15 minutes a day can close that gap.
The REIPrime Glossary: 120+ Terms, Zero Fluff
Ever looked up a real estate term and gotten a 2,000-word essay that still doesn't tell you what it means for your deal? The REIPrime glossary at reiprime.com/glossary fixes that. Every term gets a plain-English definition, the formula when there is one, and a real-world example with actual numbers.
NOI — Net Operating Income — isn't just "income minus expenses." It's "your $48,000 in rent minus $12,000 in taxes, insurance, and maintenance leaves you $36,000 in NOI. That's what the bank cares about." The glossary covers everything from cap rate to ARV to cash-on-cash return. Each entry links to related terms so you can follow the thread.
CashFlow GPT: Your Deal Analysis Shortcut
You've got a property in front of you. Rent: $2,400/month. Purchase price: $285,000. You know you need NOI, cap rate, and DSCR to run the numbers — but who has time to build a spreadsheet from scratch? CashFlow GPT does it in seconds. Plug in your inputs: rent, purchase price, expenses, loan terms. The calculator spits out NOI, cap rate, debt service coverage ratio, and cash-on-cash return. The math is done. You focus on strategy.
I ran a Memphis duplex through it last week — $310,000 purchase, $3,200 gross rent, 75% LTV at 6.5%. Thirty seconds later I had a 5.2% cap rate, 1.18 DSCR, and 8.3% cash-on-cash. That's the kind of clarity that lets you walk into a negotiation knowing exactly where you stand.
The 15-Minutes-a-Day Plan
Three terms. Fifteen minutes. Every day. Pick terms that show up in deals you're looking at. If you're analyzing a rental, start with NOI, cap rate, and DSCR. Read the definition, run a number through CashFlow GPT, and write down one sentence in your own words. No flashcards. No cramming. Just consistent exposure.
In six weeks you'll have 126 terms under your belt. You'll recognize terms in listing descriptions, lender conversations, and syndication memos. You'll stop nodding along and start asking the right questions: "What's the cap rate at that price?" "What's the DSCR at 75% LTV?" That's when you're no longer learning the language — you're using it.
Putting It All Together
The glossary teaches you the vocabulary. CashFlow GPT gives you the calculator. Combine them: look up a term you don't know, plug your deal into the calculator, and see how that term shows up in the output. NOI becomes real when you watch it change as you adjust rent or expenses. Cap rate clicks when you see it drop as the purchase price goes up. The tools do the heavy lifting. You just have to show up for 15 minutes.
Resources Mentioned
- REIPrime Glossary — 120+ real estate investing terms with formulas and worked examples
- Cap Rate vs. Cash-on-Cash Return — the difference between these two metrics and when each one matters
- How to Start Real Estate Investing with $10K — a practical entry point for first-time investors building their vocabulary alongside their portfolio
- Deal Analysis Guide — the full framework for running the numbers on any rental property
- Investopedia: Net Operating Income — an independent breakdown of the NOI formula and its role in property valuation
Cap rate measures a property's annual net operating income as a percentage of its purchase price or current market value, assuming an all-cash purchase.
Read definition →NOI (net operating income) is what a property earns from operations each year. Rental revenue minus vacancy loss and operating expenses. Before you subtract the mortgage, CapEx, or taxes.
Read definition →Cash-on-cash return measures your annual pre-tax cash flow as a percentage of the total cash you actually invested in a property.
Read definition →A ratio that measures whether a rental property's income covers its debt payments — calculated by dividing rental income by total debt service (PITIA), where 1.0 means breakeven and 1.25+ means strong cash flow.
Read definition →The estimated market value of a property after all planned renovations are complete, based on comparable sales of similar properties in similar condition.
Read definition →



