Real estate investments and business opportunity brokerage
Last reviewed: November 2026
Real estate investments and business opportunity brokerage are exam area XVII, 2% of the Florida sales associate exam. The area mixes definitions (leverage, liquidity, risk) with investment math. The math follows the income approach used in appraisal, then takes one more step: subtract the mortgage payment to find what the investor actually keeps.
Investment terms in one table
| Term | Meaning for the exam |
|---|---|
| Net operating income (NOI) | Effective gross income − operating expenses. Debt service is not subtracted |
| Cash flow (before tax) | NOI − annual debt service (principal and interest) |
| Cap rate | NOI ÷ price or value |
| Cash-on-cash return | Annual cash flow ÷ cash the investor put in |
| Leverage | Using borrowed money to raise the return on the investor's own cash |
| Liquidity | How quickly an asset turns into cash without loss. Real estate is relatively illiquid |
| Appreciation | An increase in value over time |
| Equity | Value minus the debt owed on the property |
From rent to cash flow: a worked example
A duplex costs $400,000. The two units rent for $3,600 a month in total.
| Line | Amount |
|---|---|
| Potential gross income ($3,600 × 12) | $43,200 |
| − Vacancy and collection loss (5%) | $2,160 |
| = Effective gross income | $41,040 |
| − Operating expenses (taxes, insurance, repairs, management) | $12,500 |
| = NOI | $28,540 |
| − Annual debt service on a $300,000 loan | $22,800 |
| = Before-tax cash flow | $5,740 |
- Cap rate on the price: $28,540 ÷ $400,000 = 7.135%. This is what an all-cash buyer would earn.
- Cash invested: $400,000 − $300,000 = $100,000.
- Cash-on-cash return: $5,740 ÷ $100,000 = 5.74%.
Positive and negative leverage
Borrowing helps only when the property earns more than the loan costs. Compare the cap rate with the loan's annual debt service as a share of the loan (the loan constant):
- Loan constant here: $22,800 ÷ $300,000 = 7.6%. That is higher than the 7.135% cap rate, so leverage is negative: the investor's return falls from 7.135% (all cash) to 5.74%.
- If the same loan cost $18,000 a year (6%), cash flow would be $28,540 − $18,000 = $10,540, and the cash-on-cash return would rise to 10.54%. That is positive leverage.
Leverage magnifies both directions. With more debt, a drop in income or value hits the investor's equity harder, and the mortgage payment is due whether or not the units are rented.
Risk and the features of real estate as an investment
- Advantages: income, possible appreciation, leverage, and tax rules such as the 1031 like-kind exchange for business or investment real property (see taxes affecting real estate).
- Disadvantages: low liquidity, management work, large amounts of capital, and dependence on the local market.
- Higher risk should come with a higher expected return. That is why a riskier property sells at a higher cap rate, and therefore a lower price, for the same NOI.
Business opportunity brokerage in Florida
In Florida, selling a business is brokerage. The statutory definition of a broker covers anyone who, for compensation, sells, exchanges, buys, rents or negotiates "business enterprises or business opportunities," not just real property (s. 475.01(1)(a), F.S.). A sales associate who helps sell a restaurant or a dry cleaner for a fee therefore needs a Florida real estate license and must work under a broker. The rules on escrow, advertising and paying unlicensed people apply the same way.
A business sale usually includes more than real estate:
- Tangible assets: equipment, fixtures, inventory.
- Intangible assets: goodwill (the value of the name and customer base), trade names, licenses.
- Real property or, more often, the assignment of a lease.
Personal property transfers by a bill of sale, not a deed. Businesses are often valued from their income. The same NOI-and-cap-rate idea appears in appraisal.
Exam traps
- NOI never includes mortgage payments. Cash flow does.
- Cash-on-cash return divides by the investor's cash, not the price.
- Leverage is not automatically good: if the loan costs more than the cap rate, it lowers the return.
- Selling a business for a fee in Florida requires a real estate license.
- Depreciation is a tax concept here, not an operating expense for NOI.
Practice question
An investor buys a small office building with $200,000 cash and a loan. The NOI is $45,000 and annual debt service is $30,000. What is the cash-on-cash return?
A) 7.5%. B) 15%. C) 22.5%. D) 37.5%.
Answer: A. Cash flow = $45,000 − $30,000 = $15,000. $15,000 ÷ $200,000 = 7.5%. C divides NOI by the cash invested and ignores debt service.
Test yourself
The free Florida practice test includes leverage, the income approach and cap rate math, each with a worked explanation. More formulas are in real estate exam math. For more area XVII drills and timed exams, see the paid question bank.
Sources: s. 475.01(1)(a), F.S.; IRS "Like-kind exchanges – Real estate tax tips". Real Estate Drill is an independent study tool, not investment advice. We are not affiliated with FREC, DBPR or Pearson VUE.