Reading borrowing-base provisions in a multifamily credit line

A multifamily credit line's commitment amount is not necessarily the amount the borrower can draw. Availability can depend on eligible properties, valuation methods, income tests, reserves and other uses of the line. The borrower should understand how those provisions interact before counting the facility as cash for an acquisition or refinancing.

Start by identifying the structure. A secured property borrowing base, an unsecured sponsor facility with an unencumbered-asset covenant, and an agency portfolio facility are different arrangements. Fannie Mae's 2026 Credit Facility term sheet describes a portfolio execution with collateral additions, releases and substitutions subject to a Master Credit Facility Agreement.^[1] Equity Residential's December 2025 corporate agreement instead contains defined unencumbered-asset concepts and corporate financial covenants.^[2] Neither should be treated as the template for every multifamily line.

Read eligibility before advance rates

A property contributes nothing to availability if the agreement excludes it, regardless of its market value. Identify ownership requirements, permitted liens, property type, operating status, documentation and any limits on particular categories. Then determine when admission becomes effective and who confirms it.

The EQR corporate agreement's Qualifying Unencumbered Property definition includes ownership and lien-related conditions, and its Unencumbered Asset Value definition uses different asset categories and specified limits.^[2] That is a concrete example of why an owner's asset inventory can differ from the contractual pool. It is not a secured borrowing-base formula.

For a proposed secured line, ask whether the property must be appraised, mortgaged and otherwise approved before it contributes capacity. Determine whether a newly acquired asset is excluded until diligence is complete. If the acquisition needs the line's proceeds to close, but the asset becomes eligible only after closing, the sponsor may need a separate initial funding source.

Also distinguish property value from the lender's admitted value. A negotiated definition may use an appraisal, capitalization of specified income, a cost measure or another method. Identify update frequency and who can request a revaluation. The calculation should reproduce the agreement instead of importing a valuation from the investment memorandum; EQR’s separate valuation and eligibility definitions illustrate that distinction.^[2]

Build availability as a sequence of tests

A useful model starts with admitted collateral, applies each credit limit and then subtracts amounts that consume capacity. The facility commitment may be only one limit. The actual formula determines whether valuation, income, coverage and concentration tests operate independently, sequentially or in some other way.

OCC CRE guidance explains LTV, DSCR and debt yield as different measures of credit risk.^[3] A borrowing-base model can use those concepts, but the thresholds and combinations must come from the actual line. Do not assume the lender uses all three or that a familiar threshold applies.

Suppose an illustrative secured facility has a $100 million commitment and three admitted properties valued at $80 million, $60 million and $40 million. Aggregate eligible NOI is $11 million. Assume the base is limited by 65 percent of admitted value, 9 percent minimum debt yield, and 1.25 times DSCR using a 7.5 percent annual debt-service constant. These are invented terms for this example.

The value limit is $117 million: $180 million times 65 percent. Debt yield supports approximately $122.222 million. Coverage supports approximately $117.333 million. The $100 million commitment is therefore the tightest gross limit. Assume $5 million of reserves and $3 million of letters of credit consume capacity without duplicating amounts already counted. Net capacity is $92 million. With $85 million drawn, remaining availability is $7 million.

The sponsor should not describe the line as providing another $15 million simply by subtracting drawn debt from the headline commitment. That skips the $8 million of other capacity usage. Nor does the $180 million aggregate value allow draws beyond the commitment merely because the collateral tests support them.

Test removal as well as addition

Now assume the $40 million property leaves the pool and contributes $2 million of the original NOI. Remaining admitted value is $140 million and NOI is $9 million. Keep all example tests and the $8 million capacity deduction unchanged.

The value limit falls to $91 million. Debt yield permits $100 million and coverage approximately $96 million. Value is now the tightest limit. Subtracting $8 million leaves $83 million of capacity, below the $85 million outstanding balance. The illustrative deficiency is $2 million.

If the property sale produces $25 million of otherwise distributable cash, at least $2 million must be retained to cure this assumed deficiency if repayment is the permitted remedy. The actual release could require more, involve separate premiums or impose other conditions. A borrowing-base test is not a complete release calculation.

Fannie Mae's Credit Facility sheet expressly makes structuring features subject to the Master Credit Facility Agreement and describes cross-collateralization and cross-default.^[1] Its advertised portfolio flexibility should therefore be evaluated alongside the contractual release tests. A useful sale model calculates both individual property proceeds and remaining facility compliance.

Know what a deficiency actually requires

A decline in availability might stop new advances, require repayment, permit additional collateral, allow cash collateral, or create a default after defined notice and cure periods. The proposed documents determine which consequence applies. These outcomes should be distinguished in the model: a draw suspension is different from an immediate cash payment.

Ask when tests occur. A quarter-end reporting test, a proposed draw test and a property-release test may use different dates or information. In the EQR corporate agreement, financial covenants are tested as described in section 5.8, while borrowing conditions prohibit funding that would cause covenant noncompliance.^[2] Again, that is one corporate example of overlapping tests, not a secured-line rule.

If the agreement gives the lender valuation discretion, identify the procedural protections and notice requirements. A sponsor cannot model an unknown future appraisal precisely, but can show how several admitted values change capacity. Use the result to establish liquidity headroom rather than assuming the current base remains constant.

Keep the line's records current

Maintain a property register with ownership, encumbrances, admitted value, eligible income and outstanding diligence. Reconcile it to the borrowing-base certificate and the accounting ledger. Someone should be responsible for identifying sales, new liens, changes in ownership and operating deterioration before the next certificate is signed.

OCC's July 2026 loan portfolio handbook describes processing revolving advances and monitoring financial statements and covenants.^[4] The borrower's own reporting should support that continuing process. A stale asset list can overstate availability even when the debt ledger is correct.

Before a planned draw, reproduce the post-draw test and document the assumed treatment of reserves and other obligations. Before a planned sale, run the post-release test. Before adding secured debt elsewhere, check whether it changes eligibility or corporate covenant capacity. These steps make the facility an actively managed source of capital, with visible limits and remedies.