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6 chapters
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about 11 min read
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Real estate finance splits by who writes the rule, and most exam mistakes come from missing the split. The federal government regulates the money: what a lender must disclose, how a rate may move, what it may charge, who it may not turn away, and how a loan is serviced and taxed. Your state regulates the security: who holds title during the loan, how a foreclosure runs, and whether a lender can pursue a shortfall.
Where an answer is state law, industry convention or arithmetic, it says so instead of dressing a guess as a citation. The two arithmetic chapters are left out for that reason. Orientation for study, not legal, tax or financial advice, and not affiliated with any exam body.
Each chapter opens with the short version. Tap one to read the detail.
The note is the debt, the mortgage is the leash — and only one of them is federal
~2 min
Every instrument question is really two questions: what does the paper do, and which sovereign wrote the rule. Federal law governs the loan's terms and disclosure; the security interest and everything that happens on default is your state's.
The commonest mistake is treating the note and the mortgage as one document, which makes every default question unanswerable. A promissory note is the promise to repay: the debt itself. A mortgage or deed of trust is the security instrument that pledges the property against that promise. One creates the obligation; the other creates the remedy.
Federal law owns the loan's pricing and disclosure. Regulation Z governs how the annual percentage rate is computed and stated, when a borrower may rescind, and what a prepayment penalty may be. For adjustable-rate loans, it requires a stated maximum interest rate in a variable-rate contract secured by the consumer's dwelling. That is the lifetime cap, though the regulation never says "cap"; it speaks of the maximum rate and of limitations on increases. If a question offers you a "5/1 ARM with no lifetime limit", that is not a product but a rule violation.
The due-on-sale clause is the one clean federal answer here. A federal statute preempts state limits on enforcing it, then lists transfers a lender may not call the loan for. They include a transfer to a relative on the borrower's death, to a spouse or child, and into an inter vivos trust where the borrower stays a beneficiary. Questions test that exempt list.
Everything else is your state's: whether title passes to the lender, whether a sale is judicial or by a trustee's power of sale, how long redemption runs, whether a deficiency survives. Regulation Z concedes as much, requiring a warning that "certain state law protections against liability for any deficiency after foreclosure may be lost."
Rule: before answering an instruments question, decide whether it is about the money or the security — federal law answers the first, and only your state answers the second.
Four regulators, four different promises
~2 min
Conventional, FHA, VA and USDA are not four flavors of the same loan. Each is written by a different body making a structurally different promise, and the exam tests the difference rather than the rates.
The most useful distinction: FHA insures, the VA guarantees. FHA runs a mutual mortgage insurance fund: you, as borrower, pay a premium, and the fund makes the lender whole. The VA promises to cover a portion of the lender's loss on a defaulted loan. Its regulation is written around the word guaranty and around the borrower's entitlement, the amount of that promise available to them. A guaranty is not insurance, and the paperwork shows it: entitlement can be restored, or substituted when a qualified buyer assumes the loan.
Conventional lending carries no government promise, which is why private mortgage insurance exists. It protects the lender while the borrower pays for it, a fact questions exploit constantly. "Conforming" is a separate idea: the loan meets the purchase criteria of the secondary-market enterprises. A loan can be conventional and non-conforming; that is what a jumbo is.
The rural program run by the United States Department of Agriculture (USDA) adds a different gate: place and income, not credit or equity. It offers a guaranteed product through a lender and a direct product from the agency.
Regulation Z sits across all four, because it regulates what a loan may do, whoever backs it. It covers whether payments can leave principal untouched or let it grow, what an introductory rate must disclose when it expires, when a balloon payment falls due, and how a buydown is treated. Suppose the seller funds a temporary buydown. Your payment is lower for an early period and then steps up, but the note rate never changed. A question asking "what is the interest rate" after the buydown expires is testing exactly that.
Rule: identify the backer first — insurance, guaranty, none, or an eligibility test — because the borrower's cost structure follows from it.
Disclosure law is about timing as much as content
~2 min
The consumer-protection statutes rarely forbid a term. They compel a disclosure, at a defined moment, and most exam items turn on when the clock started rather than on what the form says.
The clock starts at the application, and the regulation defines that word rather than leaving it to the lender. Six pieces of information make a request an application: the consumer's name, income, and Social Security number to obtain a credit report, the property address, an estimate of its value, and the loan amount sought. Once all six exist, disclosure duties attach. So a lender cannot keep calling something a "pre-qualification" while acting on it.
Two disclosures then bracket the transaction. An early estimate covers the loan's terms and costs, and a final statement comes before consummation, the moment the consumer becomes contractually obligated. Consummation is a defined term that appears more than eight hundred times in Regulation Z, because timing rules hang off it. That includes the borrower's right to rescind certain transactions secured by a principal dwelling.
The anti-discrimination layer is separate, and you will see the two confused. Regulation B does not govern price disclosure; it governs who may be refused and how the refusal is communicated. A denial triggers an adverse action notice stating the specific principal reasons, not a vague "credit score too low". Consider a file denied for insufficient income where the notice says only "does not meet our criteria". The decision may be perfectly lawful and the notice still defective.
The third layer, settlement, is its own regulation again. It governs escrow accounts, servicing transfers and the ban on kickbacks for referrals of settlement business.
Rule: when a question names a document, ask what event started its clock — application, consummation or the adverse decision — because the timing is usually the tested fact.
What underwriting must prove, and what no regulation states
~2 min
Federal law defines the application, the disclosures and the refusal. The standards a file is actually judged against are the enterprises' own guides, and knowing which is which saves you from inventing a federal rule that does not exist.
A creditor must make a reasonable, good-faith determination of the consumer's ability to repay, verifying income and obligations from documents rather than a stated figure. Debt-to-income is a defined input to that test. Escrow rules govern which taxes and insurance premiums are collected monthly and held. Servicing rules govern what happens after closing: who must be told when a loan changes hands, and what a servicer must do when a borrower falls behind. Loss mitigation is a defined process with its own timeline, not a courtesy.
The commonest mistake here is inventing a federal rule. The four Cs of capacity, capital, collateral and credit are a teaching frame, not a rule; Regulation B uses "capacity" only for the legal capacity to contract. Credit scores come from a proprietary model no regulation publishes. Sourcing and seasoning funds, gift letters, reserve minimums and automated underwriting results are the enterprises' purchase guidelines, which change without any rulemaking.
One term is genuinely defined: a warehouse line of credit. Regulation Z separates a creditor that finances a loan at consummation "out of the creditor's own resources, including by drawing on a bona fide warehouse line of credit" from one that merely places the loan elsewhere. That clause is the difference between a mortgage banker and a mortgage broker.
Suppose your file is declined because gift funds arrived a week before application with no paper trail. Nothing federal was breached, since no regulation sets a seasoning period for a borrower's own funds. The answer is the purchaser's guideline, which is why two lenders can decide the same file differently.
Rule: if a question asks what a lender must do, look for the regulation; if it asks what a lender will accept, that is a guideline and the honest answer names it as one.
Selling the loan is what makes the next loan possible
~2 min
The secondary market exists to recycle capital, and almost everything about how it works is market practice rather than regulation — which is exactly why it is worth understanding rather than memorizing.
A lender that keeps every loan runs out of money. Selling closed loans returns capital immediately and shifts the long-term interest-rate risk to an investor; that recycling is the whole purpose. The enterprises buy conforming loans and pool them, and certificates issued against a pool pass the borrowers' payments through to investors.
Two consequences explain things that otherwise look arbitrary. First, the buyer dictates the paperwork. A saleable loan must meet the purchaser's guidelines, which is why appraisal forms, documentation standards and eligibility rules look identical across unrelated lenders. Second, prepayment is the investor's risk, not the borrower's. When rates fall, borrowers refinance, the pool pays off early, and the investor must reinvest at the new lower rate. That is why falling rates are bad news for a mortgage-backed investor. It is also why mortgage rates track long-term bond yields rather than the central bank's overnight rate.
The trap is assuming a thick federal layer here. A regulator supervises the enterprises and sets housing goals, and the enterprises' charters declare their purposes. But pool cash flows, prepayment speeds, servicing retained or released, and repurchase demands when a sold loan breaches the guide are market convention and contract. They live in commercial documents, not regulation. If you go looking for a federal rule explaining why mortgage rates follow the ten-year yield, you will not find one, because no regulator has occasion to say it.
Rule: ask who bears the risk being described — the borrower, the lender, or the investor — because the secondary market is mostly the story of moving that risk.
The tax code splits by transaction, and so should your answer
~2 min
Holding a rental, disposing of an asset and selling a home are three different tax regimes with three different publications behind them. Identify which one an item is in before reaching for a rule.
While you hold a rental, the questions are deduction and recovery. Ordinary repairs are deductible in the year paid. An improvement must be capitalized and recovered over years, and the test is whether the work is a betterment, a restoration, or an adaptation to a new use. Depreciation runs over a fixed recovery period, and land is never depreciated because it does not wear out. Passive-activity rules may limit losses, with suspended losses generally released when you dispose of the activity.
When you dispose of the asset, the arithmetic changes shape. Gain is the amount realized less the adjusted basis: purchase price, plus capitalized improvements, less the depreciation you were allowed to claim. That last clause is where people go wrong. Basis falls by depreciation allowed or allowable, so it drops whether or not you actually deducted it, and previously claimed depreciation is recaptured and taxed differently from the rest of the gain. A like-kind exchange can defer the gain rather than eliminate it, on strict identification and closing deadlines, with any non-like-kind value received treated as boot. An installment sale spreads the recognized gain across the years payments arrive.
Selling a principal residence is its own regime again. Ownership and use tests let a homeowner exclude gain outright, a different question from either of the above, which is why a separate publication covers it.
For example, if you sell a rental for more than you paid, you usually face two different rates on one transaction: recapture on the depreciation taken, and capital gain on the rest. Treating it as a single number is the classic error.
Rule: classify the transaction first — holding, disposing, or selling a home — because each has its own publication, its own vocabulary, and its own answer.
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