Mercer County holds two very different rental markets: Trenton's rowhouses, priced like a small Midwest city, and Princeton's homes, priced like a New York suburb. Jumbo loans come up in both, for very different reasons.
In short: LendingStreet offers jumbo DSCR loans, about $1.5M to $5M+, on 1-8 unit rentals across Trenton, Hamilton, Ewing, Lawrence and Princeton, qualified on rent rather than tax returns. In Trenton a jumbo balance usually means a portfolio of rowhouses and 2-4 family buildings; in Princeton it can be a single high-value home, though rent rarely supports full leverage there. New Jersey property taxes, the state lead inspection law and good-cause eviction rules shape every file.
Trenton's Mill Hill, Cadwalader Heights, Hiltonia and the West Ward have historic homes and rowhouses, and much of the city is two- and three-story brick and frame housing near the State House and state offices. Hamilton and Ewing have postwar single-family homes and duplexes.
Princeton, Lawrence, West Windsor and Hopewell have higher-priced homes that lease to university faculty, researchers and pharmaceutical and finance employees, with Princeton Junction station providing direct trains to New York and Philadelphia.
| Area type | Examples | What a jumbo loan usually covers | Check first |
|---|---|---|---|
| Trenton | Mill Hill, West Ward, Cadwalader Heights | Portfolios of rowhouses and 2-4 family buildings | Lead inspections, CO at turnover |
| Inner suburbs | Hamilton, Ewing, Lawrence | Groups of homes and duplexes | Town rental registration |
| Princeton area | Princeton, West Windsor, Hopewell | High-value single-family leases | Very high taxes, rent support |
In Trenton, reaching $1.5M takes many properties, so jumbo financing usually means a blanket loan over a dozen or more rentals. Rents are strong relative to prices, which helps coverage even with New Jersey taxes.
In Princeton, one home can exceed $2M, but property taxes are high and rents often run well under 1% of value a month. Full leverage rarely works; investors there typically bring a large down payment or look at sub-1.0 programs.
New Jersey has the highest average property tax bills in the country, and Mercer County towns are no exception. Each municipality sets its own rate, and towns periodically revalue or reassess, so pull the actual bill and assessment for every parcel.
New Jersey charges a realty transfer fee, generally paid by the seller, and an additional tax on residential sales above $1 million whose structure was changed in 2025. On a large purchase, ask your title company for a current estimate and who pays each piece.
This example is illustrative and not a quote. An investor owns 14 rowhouses and 2-4 family buildings across Trenton and Hamilton with a combined value of $2,300,000. Combined rent is $26,000 a month. Property taxes total $5,500 a month, and insurance is $1,400.
At 70% LTV the loan is $1,610,000. Estimated principal and interest is about $10,711 a month. Adding taxes of $5,500 and insurance of $1,400 brings the payment to about $17,611, and $26,000 of combined monthly rent puts the DSCR at about 1.48x.
Taxes take almost a third of the payment, which is normal in New Jersey. The portfolio still clears the standard comfortably.
| Line item | Portfolio refinance |
|---|---|
| Value | $2,300,000 |
| Loan-to-value | 70% |
| Loan amount | $1,610,000 |
| Estimated principal and interest | $10,711 |
| Property taxes | $5,500 |
| Insurance | $1,400 |
| Total monthly payment | $17,611 |
| Combined monthly rent | $26,000 |
| DSCR | About 1.48x |
New Jersey law requires lead-based paint inspections for most rental units built before 1978, at turnover or within a set period, with towns handling enforcement. Many towns, Trenton included, also require a certificate of occupancy or rental inspection when a tenant changes.
New Jersey's Anti-Eviction Act limits evictions to specific good causes for most residential tenants, and some municipalities have local rent control. Know the rules in each town before you assume you can raise rents or turn units quickly.
The basics stay the same at any size: the loan qualifies on the property's rent, not your W-2s or tax returns, the minimum credit score is 620, LLC borrowers are standard and 30-year terms are available. What changes on a jumbo balance is the depth of review.
Maximum LTV is often lower than the 80% purchase and 75% cash-out ceilings that apply to smaller loans, reserve requirements are often higher, and some programs ask for a second appraisal or a desk review. All of it varies by program, so the right comparison is two or three structures side by side, not one headline number. Bring recent leases on similar Trenton rentals to support the rent the appraiser uses.
A jumbo-sized request in the Trenton market is often a refinance rather than a purchase. A cash-out refinance can reach 75% LTV on standard programs, subject to the rent covering the new payment, and seasoning rules vary by program.
If the balance comes from several properties, a blanket loan groups five or more rentals under one note with portfolio pricing. Buildings with 5 to 8 units stay residential and qualify on combined rent; anything with 9 or more units is a commercial loan instead. Mixing the two approaches across a large holding is common.
A clean package gets clearer terms. Have these ready when you reach out:
Send the address, value, rent and target loan amount, call (877) 298-1001, or use the form below. LendingStreet will run the ratio at a few loan sizes and come back with options. Our investor loans are business-purpose loans on non-owner-occupied property. For statewide rules and costs, see our New Jersey jumbo DSCR page.
Most units built before 1978 do, under a state law enforced by municipalities. Check timing and certificates with each town.
Yes, if the rent supports the payment. High taxes and modest rent-to-value usually mean a lower loan amount or a sub-1.0 program.
A realty transfer fee, usually paid by the seller, and an added tax on residential sales over $1 million that changed in 2025. Get current figures from title.
Trenton and many New Jersey towns require a certificate of occupancy or rental inspection at turnover. Confirm the current process with the city.
Our DSCR programs have no stated maximum. Loans start at $150,000, and balances from about $1.5M to $5M+ are reviewed case by case, usually with lower maximum LTV and higher reserves than smaller loans. The rent still has to cover the full payment.
You can lower the loan amount, add rent, or look at a sub-1.0 DSCR program. Each changes the terms, so compare them side by side before you decide. Small changes to taxes or insurance can also move the ratio.
Yes. Buildings with 5 to 8 units are financed as residential and qualify on combined rent, though maximum LTV can be lower than on 1-4 units and varies by program. Nine or more units is a commercial loan.
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