Real Estate Terms for Agents and Professionals

Agency, fair housing, client funds, listing and offer mechanics and valuation methods - a reference glossary for real estate professionals.

Agents, appraisers, lenders and investors need precise definitions: agency relationships, fair-housing obligations, client funds, valuation methods and contract mechanics. This hub collects the professional vocabulary in one place.

Use it as a reference for client conversations and for explaining terms consistently to buyers and sellers.

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Buyer Agent
A buyer's agent is a real estate agent who represents the buyer's interests in a transaction — helping find properties, negotiate price, and navigate the closing process.
Dual Agency
Dual agency occurs when one agent (or brokerage) represents both the buyer and seller in the same transaction — legal in some states, prohibited in others, and requires disclosure where allowed.
Listing Agreement
A listing agreement is a contract between a seller and their real estate agent, authorizing the agent to market and sell the property in exchange for a commission.
Comparative Market Analysis
A CMA is an agent-prepared report estimating a property's value by comparing it to similar recently sold, active, and pending listings in the area — commonly used to help set a listing price.
Fair Housing Act
The Fair Housing Act is the federal law prohibiting discrimination in housing sales, rentals, and financing based on race, color, national origin, religion, sex, familial status, or disability.
Commingling
Commingling is depositing a client's trust or escrow funds into the same account as an agent's, broker's, or company's own operating funds, instead of keeping them in a separate trust account.

All 46 terms

  • The aggregate adjustment is a line item on a mortgage's initial escrow account disclosure that reconciles the actual monthly escrow payments collected against the cushion RESPA allows a lender to hold — it's a math correction, not a fee, and is usually a small negative number.

  • AppraisalIntermediate

    An appraisal is a licensed professional's independent opinion of a property's market value, ordered by a lender to confirm the home is worth at least the loan amount before approving financing.

  • An appraisal contingency lets a buyer renegotiate or cancel a purchase contract if the property appraises for less than the agreed purchase price.

  • Appraisal GapIntermediate

    An appraisal gap is the amount by which a home's contract price exceeds its appraised value. It arises when the lender's appraisal comes in low, and matters because the lender lends on the lower value, so the buyer must cover the difference in cash, renegotiate, or cancel if a contingency allows it.

  • Appraised value is a licensed appraiser's professional opinion of what a property is worth, based on comparable sales, condition, and market data — used by lenders to confirm a loan amount is justified.

  • An AVM is a software-based estimate of a property's value generated from public records, tax data, and recent comparable sales — fast and free, but less precise than a licensed appraisal.

  • A backup offer is a fully negotiated purchase agreement that only becomes active if the seller's primary accepted contract falls through.

  • The band-of-investment method builds an overall capitalization rate by weighting the required returns on each piece of a property's capital stack — typically the mortgage constant on the debt portion and the required equity yield on the equity portion — by their share of total financing.

  • A buyer's agent is a real estate agent who represents the buyer's interests in a transaction — helping find properties, negotiate price, and navigate the closing process.

  • A certificate of value is a form some states require to be filed alongside a deed, stating the actual sale price or consideration paid, so the county can accurately record the transaction for tax and statistical purposes.

  • Commingling is depositing a client's trust or escrow funds into the same account as an agent's, broker's, or company's own operating funds, instead of keeping them in a separate trust account.

  • Comparable sales, or comps, are recently sold properties similar to a subject property in location, size, age, condition and features. Appraisers, agents and investors adjust comps for their differences to estimate the subject property's market value or, for a renovation project, its after-repair value.

  • A CMA is an agent-prepared report estimating a property's value by comparing it to similar recently sold, active, and pending listings in the area — commonly used to help set a listing price.

  • Contributory value is the dollar amount a specific feature, improvement, or component adds to a property's overall value — the practical output of applying the principle of contribution.

  • Conversion is the unauthorized use of funds held in trust — such as earnest money or escrow deposits — for a purpose other than the one the money was entrusted for, even temporarily.

  • The cost approach values a property by adding the land's value to the depreciated cost of reproducing or replacing its improvements — most reliable for new construction or unique properties with few comparable sales.

  • A counteroffer is a response to a purchase offer that changes one or more terms — price, closing date, contingencies — rejecting the original offer and proposing new terms instead.

  • Days on market is the number of days a property has been actively listed for sale, from listing date to going under contract — a key indicator of how a property is performing relative to the local market.

  • Direct capitalization converts a single year's stabilized net operating income directly into an estimate of value by dividing it by a market-derived cap rate — the simplest form of the income approach.

  • Distress value is the price a property sells for under compulsion — such as foreclosure, a rushed estate sale, or severe financial pressure — typically below true market value because the seller lacked normal time and negotiating leverage to find the best buyer.

  • The depreciated replacement cost (DRC) method is a RICS-recognized valuation approach, used mainly in the UK, for specialized properties with few or no comparable sales — valuing the site's land value plus the depreciated cost of replacing its buildings, similar to the U.S. cost approach.

  • Dual agency occurs when one agent (or brokerage) represents both the buyer and seller in the same transaction — legal in some states, prohibited in others, and requires disclosure where allowed.

  • Escalation ClauseIntermediate

    An escalation clause automatically increases a buyer's offer by a set increment above any competing offer, up to a specified maximum price, without the buyer having to resubmit a new offer each time.

  • The Fair Housing Act is the federal law prohibiting discrimination in housing sales, rentals, and financing based on race, color, national origin, religion, sex, familial status, or disability.

  • Highest and best use is the legally permissible, physically possible, financially feasible use of a property that produces its maximum value — the foundational assumption behind every appraisal.

  • The income approach values a property based on the income it generates — typically by capitalizing net operating income at a market cap rate — and is the primary method used for income-producing commercial real estate.

  • An interim valuation is a formal property valuation performed at a specific point between scheduled major valuations or milestones — for example, a mid-construction valuation to support the next draw on a construction loan, or an updated valuation requested partway through a lease term.

  • Land assemblage is the process of acquiring two or more adjoining parcels under single ownership to combine them into one larger site — typically to unlock plottage value or make a site large enough for a specific development.

  • A listing agreement is a contract between a seller and their real estate agent, authorizing the agent to market and sell the property in exchange for a commission.

  • LockboxBasic

    A lockbox is a secure container attached to a listed property that holds a key, accessible only to licensed agents with the correct code or electronic credential, letting buyer's agents show the home without the seller present.

  • Market value is the price a property would likely sell for in the current market, given normal conditions and a willing buyer and seller — distinct from appraised value or assessed value, which are formal estimates for specific purposes.

  • The MLS is a database where real estate agents share listings of homes for sale, giving buyers and their agents access to comprehensive, up-to-date property data within a market.

  • A multiple offer situation occurs when a seller receives more than one competing offer at the same time, often driving the final sale price above the original listing price.

  • The overall capitalization rate (OAR), sometimes written R₀, is the appraisal-standard term for the cap rate applied to a property's total value — as opposed to a rate applied to just one component, like the land or the building alone.

  • Plottage is the increase in value that results from combining (assembling) two or more adjoining parcels under single ownership, when the combined site is worth more than the sum of the individual parcels' values.

  • Price per square foot is a property's price divided by its total livable square footage, used to compare properties of different sizes within the same market.

  • The principle of contribution holds that the value of any single component or improvement to a property equals the amount it adds to the total property value — not what it cost to install.

  • RCNLD is the cost approach's core calculation: the cost to build the improvements new today, minus accumulated depreciation from age, wear, and obsolescence — added to land value to estimate total property value.

  • Reconciliation is the final step of the appraisal process, where the appraiser weighs the value indications from the cost, sales comparison, and income approaches — giving more weight to whichever is most reliable for that property type — to arrive at a single opinion of value.

  • Redlining was the historical practice — now illegal — of denying mortgages or insurance to residents of certain neighborhoods, disproportionately minority areas, based on maps that literally outlined them in red.

  • Replacement cost is the cost to construct a building of equivalent utility using current materials, design standards, and construction methods — not an exact replica of the original.

  • Reproduction cost is the cost to construct an exact replica of a building today, using the same materials, design, and construction methods as the original — including any outdated or inefficient features.

  • The sales comparison approach estimates value by analyzing recent sales of similar properties and adjusting for differences in location, size, condition, and features — the primary method used for most residential appraisals.

  • A seller's agent, or listing agent, represents the seller's interests — pricing the home, marketing it, and negotiating with buyers on the seller's behalf.

  • Steering is the illegal practice of an agent directing homebuyers toward or away from certain neighborhoods based on a protected characteristic like race or national origin, rather than the buyer's own stated preferences.

  • Superadequacy is a form of functional obsolescence where a feature or system exceeds what the market actually wants or needs — meaning its cost is higher than the value it contributes.

Common mistakes

  • Explaining a contract term to a client in a way that becomes legal advice.
  • Mixing client deposits with business funds.
  • Using a CMA as if it were an appraisal.
  • Steering clients toward or away from neighbourhoods, which fair-housing law prohibits.

Practical examples

CMA versus appraisal

A comparative market analysis helps set a list price or offer; an appraisal is a licensed appraiser's value opinion for a lender. Clients often confuse the two when an appraisal comes in low.

Explaining APR

Clients often compare lenders by rate alone. Showing how points and fees change the APR helps them compare offers on equal terms.

Comparisons and common questions

Calculators and guides

Frequently asked questions

What is dual agency?

One agent or brokerage representing both buyer and seller in the same transaction. Rules and required disclosures vary by state, and some states restrict it.

What is commingling of funds?

Mixing client money, such as deposits, with a broker's own business or personal funds. Licensing laws require client funds to be held separately.

Is a CMA the same as an appraisal?

No. A CMA is an agent's market analysis for pricing; an appraisal is a licensed appraiser's formal value opinion, usually for a lender.

Explore more of the glossary

Definitions are provided for general educational purposes and are not financial, legal, tax, or real estate advice. Rules vary by transaction and location - verify important decisions with qualified professionals.