Glossary of multifamily offering terms

How to use this

The vocabulary of private real estate does two jobs at once. It describes mechanics precisely, and it obscures them from anyone who has not learned it, which means a term you skim past is often the term carrying your risk.

Definitions here are written to be usable rather than short. Where a term has a statutory or regulatory meaning, the source is linked, because in several cases the industry usage and the legal definition differ in ways that matter. Where a term is purely contractual, that is said plainly, since a contractual term can mean whatever a particular agreement says it means.

If you read only one group, read the structure and economics section. Those are the terms that decide what you receive.

Securities and offering terms

Accredited investor. A person or entity meeting one of the tests in 17 CFR 230.501, which include income above $200,000 individually or $300,000 jointly in each of the two most recent years, net worth above $1,000,000 excluding the primary residence, certain professional licenses in good standing, and various entity categories generally requiring more than $5,000,000. It is a threshold for participation, not a statement about competence, and it removes a protection rather than conferring one.

Regulation D. The set of SEC rules providing exemptions from securities registration. Almost every private multifamily offering is sold under Rule 506 within it.

Rule 506(b). The exemption permitting sales to unlimited accredited investors plus up to 35 non-accredited but sophisticated purchasers, on condition that there is no general solicitation or advertising. The sponsor may generally rely on your written representation of accredited status.

Rule 506(c). The exemption permitting general solicitation and advertising, on condition that all purchasers are accredited and the issuer takes reasonable steps to verify it. This is why some sponsors ask for tax returns while others accept a signature.

Bad actor disqualification. The provisions at paragraph (d) of Rule 506 denying the exemption where the issuer or a covered person, including directors, executive officers, general partners, promoters and twenty percent beneficial owners, has certain disqualifying events. Worth one direct question of any sponsor.

Form D. A notice of an exempt offering filed with the SEC within 15 days after the first sale. It is public, searchable, and a notice rather than an approval. Nobody reviews the offering.

Private placement memorandum. The disclosure document for an exempt offering. Its risk factors section is written to protect the sponsor and is usually the most candid part of the package.

Subscription agreement. Your offer to purchase, containing representations you are making about yourself, including accredited status and ability to bear a total loss.

Restricted security. Per the SEC, securities "acquired in unregistered, private sales from the issuing company or from an affiliate of the issuer." Resale is governed by Rule 144, which requires a holding period of at least one year where the issuer is not a reporting company.

Restrictive legend. A notation preventing transfer until removed. Only a transfer agent may remove it, and only with the issuer's consent. The SEC states it will not intervene in such disputes because the matter is solely in the issuer's discretion under state law.

Structure and economics

Sponsor, general partner, managing member. The party that sources the property, arranges the debt, raises the equity, executes the business plan and decides when to sell, in exchange for fees and a promote. Practically, the sponsor is what you are investing in.

Limited partner. A passive investor contributing capital and receiving distributions and an allocation of tax items, with limited liability and generally narrow voting rights.

Key principal or guarantor. The person who signs the loan and meets the lender's net worth and liquidity tests. Sometimes the sponsor, sometimes a third party paid to provide a balance sheet, whose interests may differ from yours.

Distribution waterfall. The contractual order in which cash is distributed. Purely contract: securities law governs how an offering may be sold, not how profits are divided.

Preferred return. A stated rate paid to limited partners before the sponsor participates in profit. It is a priority in the order, not a guarantee of payment.

Cumulative versus non-cumulative. Whether an unpaid preferred return accrues and must be satisfied later, or is simply extinguished. This one word decides who absorbs the cost of a bad year, and it is the most consequential term in most agreements.

Compounding preferred return. Whether an accrued but unpaid preferred return itself earns the preferred rate. Over a hold with several soft years the difference is material.

Catch-up. A tier after the preferred return directing the next dollars disproportionately or entirely to the sponsor until they reach their target share of profit. Standard in fund structures and rarely explained in marketing.

Promote or carried interest. The sponsor's share of profit above a hurdle. Contingent on performance, unlike a fee.

Hurdle. The threshold above which promote is earned, expressed as an internal rate of return, an equity multiple, or a preferred return. An internal rate of return hurdle rewards a fast sale; an equity multiple hurdle rewards total profit.

Whole-fund versus deal-by-deal waterfall. In a fund, whether carried interest is paid only after all investors have received capital and preferred return across the entire fund, or on each sale as it occurs. Deal-by-deal relies on a clawback, which is only as good as the party owed it.

Clawback. An obligation on a manager to return excess carried interest if the fund as a whole underperforms. Ask whether it is personally guaranteed, escrowed, and computed net of tax already paid.

Capital call. A request or requirement for capital beyond your subscription. The clause that matters is not the one permitting the call, it is the one describing what happens if you decline.

Dilution. Reduction of your ownership percentage where you do not participate in a call. Punitive dilution applies a penalty factor, commonly two or three to one, beyond the ordinary arithmetic.

Blind pool. A fund raising capital before identifying the assets it will buy. You are committing to judgment and to parameters rather than to a property you can examine.

Property and operations

Gross potential rent. Every unit let at assumed market rent for a full year, occupied or not. Theoretical by construction and the starting line of every model.

Loss to lease. The gap between in-place rents and market rents. A large figure can indicate upside or simply that the market assumption is optimistic.

Economic versus physical occupancy. Physical occupancy counts occupied units; economic occupancy measures rent actually collected against gross potential. A property can be ninety-five percent physically occupied and materially lower economically once concessions and bad debt are counted.

Concessions. Free rent or incentives used to fill units. A rising concession level is often the earliest visible sign of a softening submarket.

Bad debt. Rent billed and never collected. Worth watching separately from vacancy, because the two respond to different conditions.

Other income. Parking, pet rent, utility reimbursement, storage, laundry and fees. Easy to grow on paper, harder in practice, and a model leaning on it may be disguising a weak rent assumption.

Effective gross income. Net rental income plus other income, being what the property actually collects.

Net operating income. Effective gross income less operating expenses. It excludes debt service, capital expenditure and depreciation, which is why healthy NOI can coexist with no distribution.

Capitalization rate. Net operating income divided by value. Used to price a property, and the assumed exit cap rate frequently drives more of a projected return than the entire operating plan.

Value-add. A business plan based on renovating units and raising rents. Its central assumption is the rent premium, which should be evidenced by units actually re-leased rather than modeled.

Building permits. Permitted new units, published by metro and jurisdiction in the Census Building Permits Survey. Multifamily permits lead deliveries by roughly one to two years, making them a usable indicator of competing supply during a hold.

Trailing twelve months. Actual operating results for the preceding year, as opposed to projections. Comparing modeled year one expenses against trailing actuals line by line is one of the more revealing exercises available.

Financing

Loan to value and loan to cost. Debt as a proportion of appraised value, or of total project cost including renovation. The two differ and sponsors sometimes quote whichever is lower.

Debt service coverage ratio. Net operating income divided by debt service. Usually a loan covenant, and a breach can trigger cash management, a paydown requirement or a default.

Interest rate cap. A derivative limiting the rate on floating debt above a strike. Lenders commonly require one. Its expiry date matters enormously, because replacement can cost a multiple of the original and is frequently the reason a capital call arrives.

Interest-only period. A period during which no principal is repaid. It raises early cash flow and removes principal amortization, which is one of the four components of a real estate return.

Amortization. Repayment of loan principal from operating cash flow. Invisible because no cash reaches you, and often the most reliable part of the return.

Yield maintenance and defeasance. Prepayment provisions that can make an early sale uneconomic even where a buyer exists. A common and underappreciated reason a hold extends.

Cash management or lockbox. A mechanism directing property revenue to a lender-controlled account when a trigger is breached. It can stop distributions entirely.

Accommodation. Per the federal banking agencies' policy statement, "any agreement to defer one or more payments, make a partial payment, forbear any delinquent amounts, modify a loan or contract, or provide other assistance or relief to a borrower who is experiencing a financial challenge." Short-term, and occurring before a workout.

Workout. The heavier arrangement, which per the same statement "can take many forms, including a renewal or extension of loan terms, extension of additional credit, or a restructuring with or without concessions."

Special servicer. The party administering a securitized loan once it is in distress, whose duties run to certificate holders rather than to the borrower. Relief is slower and less negotiable than with a balance sheet lender.

Tax

Schedule K-1. The form allocating your share of partnership income, deductions and credits. Box 2 usually carries the rental operating result and box 19 the cash distributed, and the two routinely differ.

Capital account. The partnership's internal bookkeeping of your interest, reported in item L. The instructions state it "can't be used to figure the partner's adjusted basis," and it is not what you receive at exit.

Adjusted basis, or outside basis. Your tax basis in the partnership interest, which limits deductible losses and determines gain at exit. Per the instructions it is "the partner's responsibility to track and maintain" it.

Passive activity. Under IRS Publication 925, an activity in which you do not materially participate. Rental activity is generally passive, so losses offset passive income rather than wages, and a limited partner fails the material participation tests by design.

Suspended loss. A loss disallowed by the basis, at-risk, passive activity or excess business loss limitations, carried forward. Released on a fully taxable disposition of your entire interest in the activity.

Cost segregation. A study reclassifying parts of a building from 27.5-year section 1250 property into shorter-lived section 1245 classes. The IRS audit techniques guide notes there are "no prescribed qualifications for cost segregation preparers," and expects a quality study to name its preparer.

Bonus depreciation. The additional first year deduction under section 168(k). Per IRS Notice 2026-11, the 2025 legislation provides "a permanent 100 percent additional first year depreciation deduction for qualified property acquired and placed in service ... after January 19, 2025," replacing the previous annual phasedown.

Depreciation recapture. Tax on gain attributable to depreciation previously taken. Section 1245 property created by a cost segregation study is recaptured as ordinary income, converting part of your gain from capital to ordinary.

Unrelated business taxable income. Income taxable inside an otherwise tax-exempt account. A leveraged deal held in a self-directed retirement account produces debt-financed income, and the account may need to file its own return.

Composite return. A group state return filed by a partnership on behalf of nonresident partners. It can remove your individual filing obligation in that state, sometimes at the cost of deductions or a lower bracket.

Where each of these is explained properly

Definitions are a starting point rather than an understanding. The terms that most often cost investors money have their own pages: the waterfall and the cumulative question in preferred return and the waterfall, the exemptions in 506(b) versus 506(c), the tax mechanics in cost segregation and bonus depreciation and reading your Schedule K-1.

On the risk side, capital calls, liquidity and hold periods and lender workouts and forbearance cover what happens when a plan does not hold.

The SEC's own material on private placements and on REITs, and the IRS partnership guidance in Publication 541, are all free, primary, and shorter than most of the marketing you will be sent.

What to ask

1. Is the preferred return cumulative, and does it compound?
2. Is there a catch-up tier, and over what band?
3. What happens if I decline a capital call, and is there a penalty factor?
4. When does the interest rate cap expire, and what does replacement cost today?
5. Does the model assume property tax reassessment on sale?
6. Will I receive a Schedule K-1 or a Form 1099, and in which states will I have a filing obligation?

What this is built on

1. Legal Information Institute, Cornell Law School, 17 CFR 230.501, definitions and terms used in Regulation D
2. Legal Information Institute, Cornell Law School, 17 CFR 230.506, including the paragraph (d) disqualification provisions
3. U.S. Securities and Exchange Commission, Rule 506(b) of Regulation D
4. U.S. Securities and Exchange Commission, Rule 506(c) of Regulation D
5. U.S. Securities and Exchange Commission, Form D, notice of exempt offering of securities
6. U.S. Securities and Exchange Commission, Rule 144, selling restricted and control securities
7. Board of Governors of the Federal Reserve System, Policy Statement on Prudent Commercial Real Estate Loan Accommodations and Workouts
8. Internal Revenue Service, Notice 2026-11, additional first year depreciation deduction under section 168(k)
9. Internal Revenue Service, Publication 5653, Cost Segregation Audit Techniques Guide
10. Internal Revenue Service, Publication 925, Passive Activity and At-Risk Rules
11. Internal Revenue Service, Publication 541, Partnerships
12. Internal Revenue Service, Instructions for Schedule K-1 (Form 1065)
13. U.S. Census Bureau, Building Permits Survey
14. Investor.gov, Private placements under Rule 506(b) and 506(c)