Institutional Underwriting Lexicon · Stephen R. Mannenbach, J.D., MBA

DSCR, Non-QM & Commercial Real Estate Finance Glossary

Quantitative definitions, underwriting formulas, and credit-committee thresholds for 22 core private-lending and DSCR mortgage terms, authored and reviewed by Stephen R. Mannenbach, J.D., MBA (Loan Daddy LLC · NMLS #2827624).

DSCR & Cash FlowDSCR = Gross Monthly Qualifying Rent ÷ Monthly PITIA (Principal + Interest + Taxes + Insurance + HOA)

Debt Service Coverage Ratio (DSCR)

The ratio of a rental property’s gross monthly rental income to its total monthly PITIA debt obligation.

Valuation & AppraisalQualifying Rent = Lower of (100% of Form 1007 Market Rent) OR (Executed Lease, unless lease override is approved up to 115%–120% of 1007).

Form 1007 Single-Family Comparable Rent Schedule

Fannie Mae Form 1007 appraisal addendum used by DSCR underwriters to establish objective market rent on 1-unit investment properties.

Valuation & AppraisalTotal Qualifying 2–4u Rent = Sum of Unit 1 + Unit 2 + Unit 3 + Unit 4 Market/In-Place Rents.

Form 1025 Small Residential Income Property Appraisal Report

Standard 2–4 unit duplex, triplex, and fourplex appraisal and comparable rent schedule required for multi-unit DSCR loans.

Prepayment & ExitExit Prepay Fee = Remaining Principal Balance × Active Year Step-Down % (5%, 4%, 3%, 2%, or 1%).

5-4-3-2-1 Step-Down Prepayment Penalty

A 5-year declining prepayment fee structure charging 5% in Year 1, 4% in Year 2, 3% in Year 3, 2% in Year 4, 1% in Year 5, and 0% thereafter.

Prepayment & ExitMonths 1–12: 3% | Months 13–24: 2% | Months 25–36: 1% | Month 37+: 0%.

3-2-1 Step-Down Prepayment Penalty

A 3-year declining prepayment penalty charging 3% in Year 1, 2% in Year 2, 1% in Year 3, and 0% after Month 36.

Prepayment & ExitPenalty = Max(1% Floor, Present Value of Remaining Cash Flows Discounted at Treasury Rate − Payoff Balance).

Yield Maintenance Prepayment Provision

An institutional prepayment calculation that makes the lender whole for lost interest spread relative to U.S. Treasury yields.

DSCR & Cash FlowMinimum Coverage: 0.75x DSCR (or 0.00x True No-Ratio) with 65%–75% Max LTV.

No-Ratio / Sub-1.00x DSCR Loan

A specialized DSCR program for properties whose current monthly rent is below monthly PITIA (0.75x–0.99x) or where no ratio is required.

DSCR & Cash FlowSTR DSCR = ((Annual AirDNA Revenue ÷ 12) × 0.80) ÷ Monthly PITIA.

AirDNA Short-Term Rental (STR) Underwriting

Using AirDNA Rentalizer or 12-month Airbnb/VRBO payout history instead of a long-term lease to qualify a vacation rental DSCR loan.

Bridge & ConstructionMax Delayed Financing Loan = Min(75%–80% Appraised Value, 100% HUD-1 Purchase Price + Documented Rehab).

Delayed Financing Exception (0–180 Day Cash Replenishment)

Refinancing an all-cash investment property purchase within 0 to 180 days of acquisition to recoup purchase capital + documented rehab.

Bridge & Construction0–90 Days: Cost Basis Cap | 90–179 Days: Select ARV Shelves | 180+ Days: Full 75%–80% ARV Cash-Out.

BRRRR Title Seasoning Requirement

The number of months an investor must hold title to a renovated property before refinancing based on its new After Repair Value (ARV).

DSCR & Cash FlowPITIA = Monthly P&I (or IO) + (Annual Taxes ÷ 12) + (Annual Insurance ÷ 12) + Monthly HOA.

PITIA (Principal, Interest, Taxes, Insurance & Association Dues)

The complete monthly housing expense denominator used to calculate Debt Service Coverage Ratio (DSCR).

DSCR & Cash FlowIO DSCR = Gross Monthly Rent ÷ Monthly ITIA (Interest + Taxes + Insurance + HOA).

Interest-Only (I/O) 40-Year & 30-Year DSCR Structure

A DSCR loan featuring an initial 10-year interest-only period followed by a 20-year or 30-year principal amortization schedule.

Bridge & ConstructionMax RTL Loan = Min(85%–90% LTC [Purchase + Rehab], 70%–75% Completed ARV).

Residential Transition Loan (RTL / Fix & Flip Bridge)

An institutional 12-to-24 month short-term bridge loan used to acquire and renovate 1–4 unit investment properties.

Bridge & ConstructionNon-Dutch Monthly Interest = (Disbursed Principal to Date) × Monthly Note Factor.

Dutch vs. Non-Dutch Rehab Interest Accrual

Whether interest on a fix-and-flip or construction loan is charged on the full committed loan amount (Dutch) or only on drawn funds (Non-Dutch).

Bridge & ConstructionLTC = (Initial Acquisition Advance + Rehab Holdback) ÷ (Purchase Price + Rehab Budget).

Loan-to-Cost (LTC) Ratio

The total loan amount divided by total project cost (Purchase Price + Documented Rehab Budget).

Bridge & ConstructionLTARV = Total Loan Commitment ÷ Appraised Subject-To After Repair Value (ARV).

Loan-to-After-Repair-Value (LTARV)

The total committed bridge loan (acquisition + rehab holdback) divided by the appraiser’s projected After Repair Value (ARV).

Entity & VestingBorrower = LLC / Series LLC | Guarantor = 25%+ Managing Member(s) providing Carve-Out or Full Recourse Guaranty.

Series LLC & Single-Purpose Entity (SPE) Vesting

Holding title to investment properties inside an LLC, Series LLC, or LP to segregate liability while borrowing under a personal guaranty.

Entity & VestingQualifying: Passport/Visa or ITIN + U.S. LLC + 6–12 Months Reserves + 1.00x–1.20x DSCR.

Foreign National & ITIN DSCR Underwriting

DSCR investment property financing for non-U.S. citizens residing abroad (Foreign Nationals) or U.S. residents filing with an ITIN.

DSCR & Cash FlowMax Leverage: Up to 75% LTV Purchase / 65%–70% LTV Refinance on Non-Warrantable Condos & Condotels.

Non-Warrantable Condo & Condotel DSCR Financing

Wholesale DSCR financing for condominium units that fail Fannie Mae/Freddie Mac warrantability rules due to short-term rentals, investor concentration, or resort amenities.

DSCR & Cash FlowPortfolio DSCR = Aggregate Gross Rent of All Properties ÷ Aggregate Monthly PITIA.

Blanket / Cross-Collateralized Portfolio DSCR Loan

A single commercial or DSCR note secured by 2 to 25+ rental properties under one master loan and payment.

DSCR & Cash FlowCommercial DSCR = Annual Net Operating Income (NOI) ÷ Annual Debt Service (P&I).

5–25 Unit Commercial Multifamily DSCR Underwriting

Net Operating Income (NOI) DSCR underwriting used for 5+ unit apartment buildings and mixed-use assets.

Entity & VestingCoverage = Min(100% Insurable Replacement Cost Value [RCV], Loan Amount) + 6 Months Rent Loss.

DP-3 Landlord Insurance & Replacement Cost Value (RCV)

Dwelling Policy Form 3 (DP-3) landlord hazard and rent-loss coverage required by wholesale DSCR lenders.

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