Top HELOC Providers When You Want to Keep Your First Mortgage

The Quick Read: The best HELOC provider for your situation depends on the property, your credit profile, and your combined leverage, because a HELOC is a separate line that sits beside your first mortgage and leaves its existing terms and balance untouched while you pay only on what you draw. Across the wholesale HELOC lenders Lendmire works with, an investment-property line typically tops out at 70% combined loan-to-value (all liens measured against the property’s value) and asks for a 700 credit score, subject to lender guidelines. Lendmire is a mortgage broker, so it shops those lenders for the program that fits your file instead of naming one winner.

• Investment property lines typically run from $25,000 to $500,000.
• Title matters: the property must be held by you personally or by a revocable living trust. An LLC generally cannot hold it.
• Who is reviewed: you are, through credit, income, and debts. The property’s rent is not the test.
• The fallback: if your first lender won’t allow a second lien, or an LLC owns the rental, a DSCR cash-out refinance is the usual alternative.

Why Keep the First Mortgage at All?

Keeping the first mortgage makes sense when its existing terms are worth protecting. A HELOC adds cost only to the amount you draw. A cash-out refinance replaces the whole balance with a new loan and reprices all of it.

That is the entire argument for a keep-your-mortgage strategy. A rental with a legacy first mortgage on favorable terms is an asset in its own right, and a second-lien line lets you pull equity without disturbing it.

The tradeoff is real, though. You take on a second payment, the pricing on the line floats, and the line is underwritten on you personally. The sections below cover when that trade works and when it does not.

Who Writes These Lines? (Provider Types, Not a Ranking)

No single provider is best for every borrower, so a ranked list would mislead you. The lenders that write investment-property lines depend on your property type, credit profile, leverage need, and how your title is held. What you can know in advance is the type of institution that does this work.

Many large retail lenders do not offer lines on rentals at all. The product sits mostly with credit unions, regional banks, and wholesale or portfolio lenders. Each has its own appetite for property types, vesting, and combined leverage.

This is where a broker earns its place. Lendmire works with a network of wholesale HELOC lenders and matches your scenario to the program whose guidelines fit it. You avoid applying lender by lender and learning each one’s limits through denials.

One boundary applies. Lendmire’s HELOC lending covers 16 full-service states (AL, CA, CO, FL, GA, IN, MI, MT, NM, NC, OH, PA, TN, TX, VA, and WA). That is narrower than its DSCR footprint of 41 markets, including Washington, D.C.

How Underwriting Treats the Line, Step by Step

A HELOC is reviewed on the borrower. A DSCR loan, by contrast, qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. Keep that contrast in mind through every step below.

Step 1: The equity test. Lenders measure combined loan-to-value, or CLTV: your first mortgage balance plus the new line, divided by the property’s value. On an investment property the ceiling is 70% CLTV. If your first mortgage already sits near 60% of value, a 70% cap leaves roughly ten points of room. The lender sets your line size from what is left.

Step 2: The borrower review. Expect a credit check, an income and debt review, and a look at your housing history. On an investment line the minimum credit score is 700. The score is a single-bureau score tied to the primary wage earner, and the report can be no more than 90 days old at closing. Maximum debt-to-income is 50%, qualified on the interest-only payment calculated on the maximum draw.

Step 3: The title gate. The collateral must be held in fee simple or leasehold by you as an individual or by an inter vivos revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold it. Moving title to an entity after closing can put you in breach of the loan terms.

Step 4: Your first note must allow a second lien. Read the first mortgage documents before you apply. If the first lender refuses a second lien, or combined leverage would break the cap, this route is closed.

Step 5: Valuation. Lines at or below $500,000 ordinarily use an automated valuation and no traditional appraisal. A higher CLTV can trigger a secondary valuation, and you can always request a full appraisal.

Step 6: Structure. The CFPB describes a HELOC as an open-end line you can draw on repeatedly during a draw period, followed by a repayment period. Investment lines in the network use one structure. You get a 5-year interest-only draw, then a 25-year fully amortizing repayment. At least 75% of the line is drawn at closing. Pricing floats through both phases and never converts to fixed. The lien can sit in first or second position.

Lenders generally build the credit limit by applying a percentage to the property’s value and then subtracting what you still owe, as the CFPB’s HELOC booklet explains. The 70% investment ceiling is that same method with a tighter percentage.

Property and File Limits Worth Knowing

Eligible properties include single-family homes, 2-4 unit properties, PUDs, townhomes, and condominiums, including non-warrantable condos. Manufactured homes, co-ops, condotels, log homes, commercial properties, mixed-use, and agricultural zoning are not offered.

A bankruptcy needs 4 years of seasoning from discharge or dismissal. On investment files, a foreclosure needs 7 years, and a deed-in-lieu, pre-foreclosure, or short sale needs 4. A borrower is limited to three lines, and an owner of more than 15 financed properties is not eligible.

Key Terms Defined

• HELOC: a home equity line of credit, a revolving line secured by a property that you draw on and repay in phases.
• Second lien: a loan recorded behind your first mortgage, which gets paid second if the property is ever sold or foreclosed.
• Draw period: the stretch when you can borrow from the line, which is interest-only on investment lines here.
• Vesting: how the property’s title is held, whether by you personally, a trust, or an entity.
• Interest-only payment: a payment that covers interest and none of the principal.
• DSCR: debt service coverage ratio, which compares a rental’s income to its full monthly obligation of principal, interest, taxes, insurance, and any association dues.

Where the Rule Breaks

The general rule is that a HELOC lets you keep your first mortgage and borrow against equity. These cases bend it.

LLC-owned rentals. An LLC cannot hold title on this line, so a rental already deeded to one hits a wall. You have three options: re-vest the property into your own name, which means weighing the legal and lender consequences first; borrow against a personally titled property such as your primary home; or use a DSCR cash-out refinance, where entity vesting is generally workable, subject to lender program eligibility.

A primary-home line to fund a rental. On a primary residence the ceilings are higher. The 90% CLTV ceiling exists only at a 720-or-better credit profile on lines up to $500,000, and a 700 score reaches 85% at that size. The first mortgage on the rental stays intact. Check the line’s terms before you later convert the home into a rental, because some lines restrict renting the property out.

Large capital needs. On an investment property the line caps at $500,000. A line above that amount is available on primary residences only, with a full appraisal and a 75% CLTV cap.

Credit below 700 on an investment line. The investment minimum is 700, so a borrower below that score cannot use this line on a rental. A DSCR cash-out refinance is a different product with its own credit standards, so ask a broker what a lower score would qualify for there.

Irregular or thin income. Because the line is judged on your income and debts, a file with heavy existing borrowing can hit the 50% ceiling early.

Ineligible properties. Manufactured homes, log homes, and barndominiums are not eligible for this line, and DSCR programs do not offer financing on them either.

HELOC or DSCR Cash-Out? It Depends

The right choice follows from how much equity you hold, how the property is titled, and who you want the lender to review. The table lays out the structural differences.

Here is how the tradeoff plays out. At a low existing balance, a cash-out can release more equity before costs, because its ceiling is higher and it is not stacking a second loan. At a high existing balance, the HELOC may leave very little room under 70% CLTV.

A DSCR cash-out refinance also carries its own conditions. About 6 months of seasoning is the common expectation, and reserves commonly run around 6 months of PITIA (principal, interest, taxes, insurance, and association dues). Coverage of 1.00 is where select programs start, and stronger ratios open better pricing and leverage. Clearing 1.00 is not the same as positive cash flow, because repairs, vacancy, management, utilities, and capex sit outside the calculation. For the full picture, see Lendmire’s complete DSCR loans guide.

The HELOC wins when the first mortgage terms are worth protecting and the draw is modest. The cash-out wins when title is in an LLC, equity is large, or your personal debt load is heavy.

What Happens When You Refinance the First Mortgage Later?

A later refinance of the first mortgage must deal with the second lien. The new first lender needs the line to stay behind it, which means the line’s lender has to agree to subordinate, or you pay the line off. Lendmire’s piece Top HELOC Providers When Subordinating Behind an Existing First Mortgage covers that scenario in more detail.

Plan for this before you open the line. If a refinance of the first is a realistic possibility, a line you cannot subordinate becomes a constraint later.

Risks, and Who Should Skip This

Pricing on the line floats across both the draw and repayment periods and never converts to fixed. Your payment can rise even if you draw nothing more. During the interest-only draw, you also are not paying down principal.

The line adds a second payment against the property’s cash flow, and your own borrowing capacity takes the hit, since the line counts against your personal debt ratio. As the CFPB notes, falling behind on a HELOC can cost you the property that secures it.

Skip this route if an LLC holds the rental and you cannot re-vest it, if your first lender prohibits a second lien, or if you need more than the line sizes allow. Skip it too if your income picture is thin or heavily leveraged, or if you plan to sell soon, since the line generally must be paid off when the property sells.

Tax treatment can depend on how the funds are used and how the property is held. Keep clear records, and speak with a qualified tax professional before relying on any deduction.

Your Application Checklist

1. Pull your first mortgage note and confirm it permits a second lien. 2. Confirm how title is held. It needs to be you personally or a revocable living trust. 3. Work out your CLTV: first mortgage balance plus the line you want, divided by the property’s value, against the 70% investment ceiling. 4. Check your credit against the 700 minimum, then total your debts against the 50% ceiling. 5. Gather your credit report, income and debt documentation, lease and rental history, and title and vesting evidence. 6. Ask a broker to match your file to the program whose guidelines it fits.

Lendmire’s piece How to Qualify for an Investment Property HELOC When You Want to Keep Your First Mortgage goes deeper on step-by-step qualification.

Next Step

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. You can reach the team at 828-256-2183. Every figure here is subject to lender guidelines and full file review, and nothing here is a commitment to lend.

About Lendmire

As a mortgage broker (NMLS# 2371349), Lendmire helps homeowners and real estate investors in its 16 full-service states open home equity lines of credit arranged through wholesale lenders. Lendmire is never the lender; line amounts, ceilings and terms are set by the lender under its guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. The CFPB

2. CFPB – HELOC booklet