The Quick Read: A fully rented 2-4 unit building qualifies for an investment-class equity line only when the borrower holds title personally or in a revocable trust, has at least a 700 credit profile, and stays at or under 70% combined loan-to-value. Lines on these buildings max out at $500,000, and the file is judged on you, not on the rent.
- Investment lines cap at 70% CLTV, and 720 and 700 credit both reach that cap, subject to lender guidelines.
- 700 is a hard floor on an investment line. There is no tier beneath it.
- Title must sit with an individual or an inter vivos revocable living trust. LLC-held buildings cannot take the line.
- Duplex, triplex and fourplex are treated alike on headline numbers. More units mean more paperwork.
- Availability runs through Lendmire’s 16 full-service states, which is narrower than its DSCR footprint.
Lendmire is a mortgage broker. It arranges these lines through select wholesale partners and never lends itself. Every figure below is subject to lender guidelines and full file review. None of it is a commitment to lend.
How large a line the equity supports.
An equity line is sized by combined loan-to-value, occupancy, and credit — not by rental coverage. Switch the occupancy or the credit band and the ceiling moves with it.
Investment-property lines require a 700 minimum credit score; second-home lines start at a 640 minimum and primary-residence lines at 600, and the combined-LTV ceiling steps down as the credit band drops on primary-residence and second-home lines and holds on investment-property lines; the line cap steps down on primary-residence lines and holds at every tier on investment-property and second-home lines.
A debt-to-income ratio above 45% requires 680+ credit. Profiles under 640 are limited to single-family homes. At least 75% of the approved line is drawn at closing. Ceilings, floors, and caps update from Lendmire’s centralized guideline source.
Line estimate
Illustrative estimate only — not a quote, Loan Estimate, approval, or commitment to lend. The rate is an editable assumption; equity-line pricing is variable through both the draw and repayment periods and never converts to fixed. Occupancy and credit drive the ceiling together: an investment property tops out at 70% combined LTV (minimum credit 700, line cap $500,000); a second home tops out at 90% combined LTV (minimum credit 640, line cap $500,000), with the ceiling stepping down as the credit band drops (the cap holds at every tier); a primary residence tops out at 90% combined LTV (minimum credit 600), and its $750,000 maximum line is available only at 75% combined LTV or below with a 700-or-better credit profile (720 on the longer-runway program) and a full appraisal. Lines above $500,000 require a full appraisal. Credit, debt-to-income, property type, and full underwriting review all affect the final line.
What Counts as a Duplex, Triplex or Fourplex Here?
A building with two to four legal residential units counts, and each unit is rented to a tenant. Five or more units is a different product class. Mixed-use buildings, such as a fourplex with a storefront, are not offered. Neither are co-ops, condotels, manufactured homes or agricultural-zoned parcels.
The unit has to be a legal one. A rented basement room or an informal garage conversion does not turn a single-family house into a duplex for lending purposes. The appraiser documents the unit count, and the file has to match it. If the lease count and the legal count disagree, expect questions.
Condominiums, townhomes and PUDs are eligible property types in the network, including non-warrantable condos. Modular factory-built homes are eligible on one of the two wholesale programs only. That detail matters if the building is unusual.
Which Occupancy Class Is Your Building In?
Occupancy decides the product. If you live in one unit, the building is a primary residence and the line is a different, easier product with higher ceilings. If every unit is rented, it is an investment property. The same building can land in either class depending on one lease.
| Your situation | Class | What changes |
|---|---|---|
| Live in one unit, rent the rest | Primary residence | Ceiling reaches 90% CLTV, only at 720+ |
| Rent every unit | Investment property | 70% CLTV ceiling, 700 minimum |
| Rent every unit, title in an LLC | Not eligible as titled | Re-title or use a different product |
Don’t read the primary-residence ceiling as available to a fully rented building. It is not. On an investment property the ceiling is 70% CLTV, with no tier above it.
Moving out after you open a primary line is where files go wrong. The CFPB’s HELOC booklet warns that renting out your home may be restricted under the line’s terms. Read the occupancy covenants before you convert a house-hack to a full rental. Lendmire’s piece How to Qualify for an Investment Property HELOC on a Fourplex When You Live in One Unit covers that owner-occupied side.
How Does Underwriting Treat the File, Step by Step?
The line is underwritten on the borrower’s personal file. That is the key difference from a DSCR loan. Here is the order a file moves through.
1. Classify occupancy. Confirm every unit is leased to a tenant. This sets the ceiling.
2. Check title. The deed has to show the individual borrower or a revocable living trust. Irrevocable, blind and land trusts cannot hold title. Neither can LLCs, corporations or partnerships.
3. Run credit. The network uses a single-bureau score keyed to the primary wage earner. The report can be no more than 90 days old at closing, and there are no rescores. An investment line needs at least 700.
4. Measure combined leverage. Add the first-mortgage balance to the proposed line limit. Divide by the property value. On an investment property that result cannot exceed 70%.
5. Test debt-to-income. The maximum is 50%. Profiles from 600 to 679 face 45%, but an investment line starts at 700, so that band does not apply here. A ratio above 45% needs a 680 minimum. The payment is qualified on the interest-only amount at the maximum draw, not the amount you plan to draw.
6. Value the property. More on that below.
7. Review housing and derogatory history. Housing history applies across all financed properties, not just the subject. A bankruptcy needs 4 years of seasoning from discharge or dismissal. For foreclosure-family history on investment files, the seasoning path is 7 years for a foreclosure and 4 years for a deed-in-lieu, pre-foreclosure or short sale.
The NerdWallet explainer on investment property HELOCs says these lines are not offered by all lenders and carry strict qualification requirements, because lenders treat default risk as higher than on a primary home. That matches what the network sees. The lender pool is small, and the file has to be clean.
The Leverage Math (and Why Equity Is Only Half the Test)
Maximum line equals the property value times 70%, minus the existing first mortgage. That is the whole formula on an investment property. The line itself cannot exceed $500,000.
Run the numbers on a building with a low first-mortgage balance relative to value. The line may be limited by the $500,000 cap before the 70% ceiling bites. Now take a building bought recently with a high-leverage first mortgage. The first lien can already sit near 70%, leaving almost no room. Equity left over after the first loan is the only thing that creates a line.
On this network the figure is firm: 70% CLTV on an investment property, never higher.
Because 720 and 700 both reach the same 70% cap, a higher score buys eligibility and not leverage. Above 700, extra points do not raise the ceiling.
Does Unit Count Change Anything?
Not on the headline numbers. A duplex, triplex and fourplex run the same ceiling, the same credit floor and the same line cap. What grows is the document load and the vacancy exposure.
| Factor | Duplex | Triplex | Fourplex |
|---|---|---|---|
| Headline CLTV and credit | Same | Same | Same |
| Leases to collect | 2 | 3 | 4 |
| Deposits to trace | Fewer | More | Most |
| Vacancy exposure | One unit = half | One unit = a third | One unit = a quarter |
One vacant unit hurts a duplex more than a fourplex in income terms. It also muddies the occupancy story on any size. Lenders want to see the building rented in the form the file claims. On a 2-4 unit property, the 640 minimum score applies on one of the two wholesale programs, but the investment floor of 700 sits above it, so 700 is what binds.
Does Rental Income Help?
It helps tell the story, but it does not carry the file. The test is personal: credit, debt-to-income, equity and the documented history of the building. Some bank-style programs count only part of projected rent. The debt-to-income limit may stretch on projected rental income, depending on the lender.
This is where a line differs from a DSCR loan. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. An equity line asks about you. If your personal debt load is heavy, strong rents on the building will not rescue the file. If rents are modest but your personal ratios are clean, the line can still work.
Document the building anyway. A lease for each unit, a current rent roll, the first-mortgage statement, an insurance declaration and the vesting deed make the file easier to read. Deposit tracing gets longer with each added unit. A file that shows one tenant’s deposits scattered across three accounts will draw more questions than one that lands in a single account.
Title and Entity: The Sharpest Break From DSCR
The line requires fee simple or leasehold title held by the individual borrower or a revocable living trust. An LLC cannot hold title, and neither can a corporation or partnership.
Many small-building investors hold in an LLC for liability reasons. If that is you, you have three paths. You can change the vesting on the deed, which carries its own legal and lender consequences. You can borrow against a different property you hold personally. Or you can use a DSCR cash-out refinance, which is built for entity-held rentals, subject to program terms. Lendmire’s complete DSCR loans guide walks through that entity structure.
Valuation: Why Most Files Skip the Traditional Appraisal
Because an investment line caps at $500,000 and full appraisals begin only above that amount, an investment line sits in the automated-valuation lane. It commonly closes without a traditional appraisal. A higher CLTV may trigger a secondary valuation, and a borrower can request a full appraisal in any case.
There is a catch on small multifamily. An automated model has less to work with on a triplex or fourplex than on a tract house, so a requested full appraisal can be worth it when units are unusual. NerdWallet notes that an investment property may need more than one appraisal, whereas a computer estimate may replace an in-person appraisal on a primary home. Expect that variance.
Draw and Repayment Structure
Investment lines run one structure only: a 5-year interest-only draw followed by a 25-year fully amortizing repayment. At least 75% of the line is drawn at closing. After closing, the minimum subsequent draw is $1,000, with a higher figure in Texas, per program terms.
Pricing floats across both the draw and the repayment periods and never converts to fixed. The CFPB’s HELOC overview confirms that HELOCs generally carry variable interest rates, so payments may change from month to month. Payments also step up when repayment begins, because principal starts to amortize. Plan for that shift before you draw.
A borrower is limited to three lines, with combined exposure capped at $2,000,000 on the higher-leverage program and $750,000 on the longer-runway program. Owning more than 15 financed properties makes a borrower ineligible. Investors with a large portfolio should count their financed doors before they apply.
Edge Cases Where the General Rule Breaks
Vacancy. A line needs tenants in place. A building with an empty unit, or a freshly renovated one with no lease history, raises the occupancy question and can stall the file.
Listed for sale. A property listed for sale, or listed within the past 60 days, is ineligible in NC, PA, TN, TX and WA.
Recent purchase. A building bought with a high-leverage first mortgage can leave no usable equity, so the CLTV test fails even when credit is strong.
Texas. Texas investment properties are eligible as non-homestead transactions. The 12-day waiting period and one-lien-at-a-time rule bind primary residences only. Properties are limited to 10 acres.
New Mexico and Ohio. Both apply a CLTV cap that depends on the credit profile, so the standard table may not apply as written.
Availability. These lines are available only in Lendmire’s 16 full-service states: AL, CA, CO, FL, GA, IN, MI, MT, NM, NC, OH, PA, TN, TX, VA and WA. An investor outside that list needs another route.
Key Terms Defined
Combined loan-to-value (CLTV): the first-mortgage balance plus the line limit, divided by the property’s value.
Draw period: the stretch when you can borrow against the line, here five years on an investment property.
Vesting: how title is held on the deed, such as an individual or a revocable trust.
DSCR: the ratio of a property’s rent to its full monthly payment, used on rental-income loans instead of a personal income test.
Where Files Fail, and How to Fix Each One
- Title in an LLC. Fix by re-titling, borrowing against another personal property, or moving to a DSCR cash-out.
- Score under 700. An investment line has no tier beneath 700. Fix the score, or consider a different product.
- CLTV over 70%. Wait for equity to build, pay down the first lien, or size the line smaller.
- Debt-to-income above the limit. Payoff of other debt can bring the ratio down. Remember the test uses the interest-only payment on the maximum draw.
- Housing history gaps. The history is read across all financed properties, so a late on another rental counts.
- Unclear unit count. Align leases, the deed and any unit documentation before submitting.
Line, Cash-Out or DSCR: Choosing in Practice
A line sits behind the first mortgage, so it lets you keep an existing first loan in place. A cash-out refinance replaces it. That is the real trade. If you hold a first mortgage you want to keep, a second-lien line can make sense. If the building is in an LLC, or your personal ratios are tight, a DSCR cash-out is usually the cleaner route. A DSCR loan is built for non-owner-occupied rentals and reviews the property’s income rather than your personal wages, subject to lender guidelines.
On the DSCR side, select programs typically land at 75% LTV on a cash-out of a standard rental, with 1.00 coverage where many select programs start, and a separate select-lender path takes coverage below 1.00 with leverage and terms adjusted. Clearing that ratio is not the same as positive cash flow, since repairs, vacancy and management sit outside the calculation.
An alternative is borrowing against your own primary home to fund the rental purchase. That keeps the rental’s title untouched but puts your home at risk instead of the rental. Weigh that before you pick it.
Frequently Asked Questions
Can a fully rented fourplex get an equity line?
Yes, on an investment-class line, if title is personal or in a revocable trust and the borrower holds at least a 700 score. The ceiling is 70% CLTV and the line cannot exceed $500,000, subject to lender guidelines. The file is read on you, not on the rent.
What credit score do I need for an investment line on a triplex?
At least 700. Both the 720 and 700 tiers reach the same 70% CLTV ceiling, so a higher score adds eligibility cushion rather than more leverage. There is no investment tier below 700.
Will an LLC-owned duplex qualify?
Not as titled. LLCs cannot hold title on these lines. Options include a vesting change, borrowing against a personally held property, or a DSCR cash-out refinance, depending on program terms.
Do I need a full appraisal?
Usually not. Because investment lines cap at $500,000, they commonly use automated valuation. A higher CLTV can trigger a secondary valuation, and you can request a full appraisal at any time.
How many lines can I hold at once?
Up to three, with combined exposure capped at $2,000,000 on the higher-leverage program and $750,000 on the longer-runway program.
If you are considering a home equity line and want to see how the numbers work, Lendmire can help you compare HELOC options based on the property, the equity available, credit profile, combined leverage, and your goals. Reach the team at 828-256-2183 or request a quote.
For current guidelines and terms, see Lendmire’s investment-property HELOC programs page.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage broker. Home equity lines of credit — on a primary residence, a second home or an investment property — are arranged through wholesale lenders in Lendmire’s 16 full-service states, and every line is underwritten by the lender under its program guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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Informational only. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
References
1. CFPB – What You Should Know About HELOCs booklet
2. NerdWallet explainer on investment property HELOCs
This article is part of Lendmire’s investment property HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How to Use an Investment Property HELOC for a Seasonal Business · How to Qualify for an Investment Property HELOC Without Your Spouse on the Loan · How to Qualify for an Investment Property HELOC With the Home Listed for Sale Soon
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Disclosure information. Lendmire is a state-licensed mortgage brokerage under NMLS# 2371349. Lendmire is not a depository institution, direct lender, or financial advisor — all loans referenced are placed through wholesale lender partners and are subject to each lender's underwriting standards. This article is provided for general informational purposes and is not a commitment to lend, nor does it constitute financial, legal, or tax advice. Loan programs, terms, rates, and qualification standards change without notice and depend on borrower profile, property type, and the state in which the subject property is located. Equal Housing Opportunity provider. NMLS Consumer Access: nmlsconsumeraccess.org.