Real-estate underwriting borrows vocabulary from accounting, finance, and lending, and most of it sounds more intimidating than it is. Here are the terms you'll see on Deelva, in plain English, with a quick example where it helps.
Underwriting
verb · the work Deelva does for you
The process of evaluating whether a deal makes financial sense before you commit. For a rental property, underwriting means: pull the rent, pull the expenses, model the financing, project a few years forward, and ask. Does this clear my target return after all the math?
In practice: The summary card on every Deelva listing is the underwriting result. The Investment Assumptions panel is the inputs that drive it.
Cash flow
also: monthly cash flow, net cash flow
What's left in your pocket after rent comes in and every bill goes out. Mortgage, taxes, insurance, HOA, maintenance, capex reserve, vacancy reserve, and management. Positive cash flow means the property pays you. Negative means you cover the gap.
Example: Rent $3,800 − PITI $2,600 − HOA $500 − reserves $300 = $400/month positive cash flow.
Cash-on-cash return (CoC)
also: cash yield, year-one return
Annual cash flow divided by the cash you put in at closing (down payment + closing costs + any prep). It's the return on the dollars you actually wrote a check for. The cleanest first-year apples-to-apples comparison between deals.
Net Operating Income (NOI) divided by the property's price. The unlevered yield, before any financing. Cap rate tells you what an all-cash buyer would earn. Useful for comparing properties across markets without the mortgage muddying the picture.
Example: $18,000 NOI ÷ $400,000 price = 4.5% cap rate.
NOI (Net Operating Income)
Effective rent minus all operating expenses, but before mortgage payments and income tax. NOI is the property's earning power on its own. How it would perform with no loan. Cap rate is built on top of NOI.
NOI divided by annual mortgage payments. A DSCR of 1.25 means the property's net operating income covers the mortgage 1.25× over. The lender's standard buffer. Under 1.0 means rent doesn't cover the loan.
Lender floors: DSCR loans typically require ≥ 1.25. Conventional investor loans test your DTI instead and only use DSCR as a sanity check.
IRR (Internal Rate of Return)
The annualized return on your invested cash over the full holding period, accounting for both ongoing cash flow and the sale proceeds at the end. IRR is the single number that captures “what did this deal actually return me, all-in.”
Example: Deelva's 10-year projection compares the IRR of holding-and-selling against the unlevered cap rate so you can see how much of the return is leverage vs. the property itself.
Vacancy
A reserve for the time your unit sits empty between tenants. Expressed as a percentage of gross rent. Deelva defaults to 3% for stabilized condo and co-op stock. Meaning we assume the unit is empty roughly one month every three years.
CapEx (Capital Expenditures)
A reserve for the big-ticket replacements that hit every 5–20 years: roof, HVAC, kitchen, bathrooms, water heater. CapEx is separate from routine maintenance. These are items you save up for, not bills you pay every month.
Default: 2% of effective rent for condo/co-op buildings (HOA reserves cover the big shared systems).
Maintenance
Routine repairs that come up every year. Busted appliances, paint between tenants, small plumbing fixes. Different from CapEx (the major systems). Deelva defaults to 3% of effective rent.
Property management
A fee paid to a third party to handle tenants, repairs, and rent collection. Typically 8–10% of gross rent. Off by default in Deelva. Small investors usually self-manage. Toggle it on if you're modeling a hands-off deal.
PITI
Principal + Interest + Taxes + Insurance. The four parts of a standard mortgage payment. When lenders ask “what's your total housing cost?” PITI is the answer.
HOA (Homeowners Association)
Monthly fee paid by condo and co-op owners to fund building maintenance, reserves, staff, amenities, and shared insurance. Listed separately from your mortgage payment, but functionally part of your monthly carrying cost.
Reality check: HOAs of $500–900/month are common on new condo stock and can swing a deal from cash-flow-positive to cash-flow-negative.
Appreciation
The annual rate at which the property's market value grows. Deelva now uses a per-market rate drawn from Zillow's home-value index (ZHVI) history rather than one flat number, so Hudson County (roughly 4.5%/year) and South Florida (roughly 4.0%/year) each get their own assumption. It compounds. A $400k property at 4.5%/yr is worth ~$621k in 10 years. You can override the rate in Investment Assumptions.
Rent growth
The annual rate at which market rent climbs. Independent of appreciation: Rents and prices can move at different paces. Deelva now uses a per-market rate from Zillow's observed-rent index (ZORI) history, typically around 4%/year, instead of one flat number. Where a unit sits in a rent-controlled town, the projection is capped at the local annual increase limit (see Rent control). You can override the rate in Investment Assumptions.
LTV (Loan-to-Value)
The size of your loan as a percentage of the property's value. 25% down = 75% LTV. Lenders cap LTV based on loan type: investor conventional ≤ 75%, DSCR loans ≤ 80%, FHA owner-occupier ≤ 96.5%.
Down payment
The cash you put toward the purchase, the rest financed by a mortgage. Investor minimum is 25% on conventional loans. Deelva defaults to 25%. The standard you can underwrite against without surprise overlays.
Closing costs
One-time fees paid at the closing table. Lender origination, title insurance, attorney, recording, inspection, appraisal, NJ transfer tax. Deelva defaults to 3% of purchase price as a reasonable all-in estimate for NJ.
NJ Mansion Tax
New Jersey assesses an extra 1% on the buyer when the purchase price is $1M or higher. Deelva adds this automatically to your “cash invested” line on deals over $1M.
Breakeven rent
The monthly rent at which your cash flow is exactly $0. You're not making money but you're not losing money either. If breakeven rent is lower than market rent, the deal cash-flows. If higher, it doesn't.
GRM (Gross Rent Multiplier)
Purchase price divided by annual gross rent. A rough screening shorthand: a GRM of 15 means the property costs 15× the annual rent. Useful for back-of-envelope, but it ignores expenses entirely. Never use it as the only number.
1% rule
An old screening shortcut: monthly rent should equal at least 1% of the purchase price. A $400k property “passes” the 1% rule if it rents for $4,000/month or more. It badly overstates returns on NJ condos (ignores HOA + tax) and Deelva shows it only for reference.
Offer price
What you'd actually pay, not what the seller is asking. Deelva lets you set an offer price below list and re-runs every metric at that price. So you can find the price at which the deal works.
Target cash-on-cash
The minimum first-year return on cash you'd accept. Set yours in the offer-strategy card, and Deelva solves backwards for the offer price that hits that target. Default: 5%.
DTI (Debt-to-Income)
A borrower's total monthly debt payments divided by gross monthly income. Conventional lenders cap DTI around 43–45%. Distinct from DSCR: DTI is about you, DSCR is about the property.
DSCR loan
An investor loan that qualifies based on the property's DSCR (≥ 1.25 typical) rather than your personal income. Faster to close, no W-2 documentation, but higher rate (~0.5–1.0% above conventional) and 20–25% down minimum.
Conventional investor loan
A Fannie/Freddie-conforming loan for non-owner-occupied property. 25% down minimum, full W-2 + tax-return documentation. Cheaper rate than DSCR but slower to close and tougher to qualify if you're self-employed or already carry mortgages.
FHA loan (owner-occupier)
A government-insured loan with 3.5% down minimum, but only for properties you'll live in. Common “house-hack” play: buy a duplex/triplex, live in one unit, rent the others. Mortgage insurance for the life of the loan.
All-cash
Buying without a mortgage. No DSCR concerns, no interest expense, but a much larger upfront cash outlay. So cash-on-cash drops substantially. Common for high-yield small-dollar deals or aggressive bidders trying to win a competitive close.
Refinance (refi)
Replacing your existing mortgage with a new one, usually to lower the rate or pull cash out of the property's appreciated value. Deelva doesn't currently model refis. The 10-year P&L assumes the original loan stays in place.
1031 exchange
An IRS provision that lets you defer capital gains tax by rolling proceeds from one investment property into another (“like-kind”) within strict deadlines: identify the replacement in 45 days, close in 180. Not modeled in Deelva; relevant when you're planning your exit strategy across multiple properties.
Operating expenses (OpEx)
Everything you pay to keep the property running. Taxes, insurance, HOA, maintenance, capex reserve, management, vacancy reserve. Excludes mortgage payments (those are debt service, not operating).
Gross rent
The headline monthly rent before any deductions. What the lease says. Effective rent is what you actually collect after the vacancy reserve.
Effective gross income (EGI)
Gross rent minus the vacancy reserve. The line right above operating expenses in a proforma. Deelva uses this as the base for percentage-based reserves like maintenance and capex.
Debt service
Your mortgage payment. Principal + interest only (taxes and insurance are operating expenses, not debt service). Annual debt service is the denominator in DSCR.
ARV (After-Repair Value)
A flipper's term: what the property is worth after you renovate. Deelva doesn't model rehab spend or ARV. We focus on buy-and-hold rentals where most listings in our featured markets are already rent-ready.
Recommended offer
An illustrative offer estimate Deelva's model generates from the list price, the verdict, and the deal's leverage signals (days on market, price cuts, and how the numbers pencil out). It is a starting point for your own analysis, not advice, an appraisal, or a recommendation to make any specific offer. You set the price you actually offer.
How to read it: The offer spectrum in Financials shows this estimate alongside the list price, with each point labeled by its percentage above or below list so you can see the negotiating room the model sees.
Walk-away price
The upper end of Deelva's offer spectrum: the modeled price above which the deal stops meeting its return target under your assumptions. It is an estimate to frame your negotiation, not a limit or advice. Pay more and the projected returns compress; the point where they cross your threshold is the walk-away estimate.
Break-even price
The modeled purchase price at which the property's projected monthly cash flow lands at zero, given your rent, expense, and financing assumptions. Below it the deal is projected to cash-flow positive; above it, negative. Like every Deelva figure it is an estimate that moves as you edit the assumptions.
Smart Picks verdict
Deelva's automated read of how a listing's numbers stack up, shown as a short label (for example a strong-cash-flow pick or a stretch). It is generated by applying the same underwriting criteria to every listing, not personalized advice or a recommendation to buy. Use it to triage the map, then dig into the full financials yourself.
Rent confidence
A high, medium, or low flag on each rent estimate that reflects how much agreement the underlying sources show for that unit. High means the Deelva rent model and market comps line up closely; low means the unit is atypical (luxury, oversized, or unusual) and the estimate leans on fewer signals, so it deserves a manual comp check before you rely on it.
Days on market (DOM)
How long a listing has been for sale. Deelva compares each listing's DOM to the median for its market to gauge negotiating leverage: a listing sitting well past the local median has grown stale, which often means the seller is more willing to negotiate. A brand-new listing gives you less room.
Note: When a listing's DOM is unknown (for example a link you pasted that we can't date), Deelva leaves the signal blank rather than guessing.
Price cut
A reduction from the listing's original asking price. Deelva surfaces the size of the cut, how many times the price has dropped, and when, because a listing that has already been cut is a signal the seller may be motivated. It feeds the same negotiating-leverage read as days on market.
Rent control
A local law capping how much a landlord can raise rent each year on an existing tenant. Several Hudson County towns have rent control, so where a listing sits in one Deelva flags it and caps the rent-growth projection at the town's legal annual limit instead of the market rate. It affects your future rent, not the starting rent.
Why it matters: A market growing rent at 4%/year but capped at 3.5% by ordinance will compound more slowly, which the projection reflects.
Flood zone
FEMA's designation of a property's flood risk (for example a high-risk Special Flood Hazard Area versus a lower-risk zone). Deelva shows the zone from FEMA data as general information, not an official flood determination. Zones change and are property-specific, so confirm the current zone with FEMA and your lender before you rely on it.
Flood insurance
Coverage against flood damage, usually required by lenders in high-risk zones and separate from standard hazard insurance. In flood-prone areas Deelva folds an estimated annual flood-insurance cost into the insurance line so the cash-flow math isn't optimistic. It is a modeled estimate, not a quote; get an actual quote from a licensed insurer.
Climate & natural hazard risk
A neighborhood-level read of exposure to natural hazards (flooding, wind, heat, and related risks) drawn from FEMA's National Risk Index. Deelva shows it for context on a listing's area. It is general information about the area, not a representation about the safety of any specific property, and not a substitute for inspection or your own due diligence.
Walk / Transit score
Neighborhood convenience measures: how walkable the area is and how well it's served by public transit. Deelva builds the transit read from published transit schedules (GTFS feeds) and nearby stops, and shows schools and drive times alongside it. All of it is third-party, area-level information to color in the location, and it should be verified for anything you rely on.