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Khosla’s Keith Rabois Leads $11.5M Series A for Roam, Betting on Assumable Mortgages

By TheFinanceBase Team9 min read
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Roam raised an $11.5 million Series A led by Khosla Ventures’ Keith Rabois in April 2025. The startup helps buyers find homes with potentially assumable FHA and VA mortgages, qualify for the transaction, arrange financing for the seller’s equity, and navigate lender approval. Rabois called Roam “the future of the housing market,” but the practical opportunity is narrower: an assumable mortgage can reduce the rate on a buyer’s first lien without eliminating the need to fund the home’s equity gap.

What Roam raised

TechCrunch reported on April 2, 2025, that Keith Rabois of Khosla Ventures led Roam’s $11.5 million Series A. Founders Fund, an existing investor, also participated. Rabois joined Roam’s board, as did former Opendoor co-founder Eric Wu, who invested as an angel.

According to the report, Roam had raised approximately $16 million across three rounds:

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  • $1.25 million pre-seed round in September 2023
  • $3 million seed round in May 2024
  • $11.5 million Series A in April 2025

Roam did not disclose its valuation. The financing report described the company as founded in September 2023 by Raunaq Singh, a former Opendoor product employee.

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Rabois’s investment thesis was that Roam could address housing affordability by making low-rate mortgages more usable, unlocking homes that owners might otherwise keep off the market, and building on the team’s prior experience. That is an investor thesis—not proof that assumable mortgages will become a dominant housing-market mechanism.

Read TechCrunch’s financing report.

The housing problem Roam is targeting

Mortgage-rate lock-in creates problems on both sides of a transaction. A homeowner with a mortgage originated or refinanced at roughly 2% to 4% may be reluctant to sell if buying another home would require replacing that loan with a much more expensive mortgage. Buyers, meanwhile, may find that today’s interest rates push otherwise affordable homes beyond their monthly budgets.

An assumable mortgage offers a possible bridge. Instead of taking out a new first mortgage for the entire purchase price, a qualified buyer assumes the seller’s existing loan balance, interest rate, and remaining term. The buyer may therefore inherit a below-market first-mortgage rate.

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But “assumable” does not mean “free to transfer to anyone.” The buyer generally must satisfy the applicable government-program and servicer requirements, and the original lender or servicer—not Roam—makes the official approval decision. Federal mortgage-disclosure rules also recognize that an assumption may be conditional on creditworthiness, lender security, and a signed assumption agreement. See the Consumer Financial Protection Bureau’s assumption rule.

What Roam actually does

Roam is not the mortgage lender. Its public materials describe a marketplace and transaction-support service that aims to:

  1. Identify homes with potentially assumable mortgages.
  2. Help buyers assess eligibility and obtain a “Proof of Assumption Eligibility” letter.
  3. Connect buyers with agents and support the offer process.
  4. Arrange secondary financing where available to cover part of the equity gap.
  5. Coordinate documentation, servicer review, title, escrow, and closing.

Roam says its process can begin quickly, reduce a traditional assumption timeline of roughly 180 days to about 45 days, and work with any servicer. It also says it may pay a seller’s mortgage if a transaction has not closed within 45 days and that offers backed by its eligibility letter have achieved a 95% acceptance rate.

Those are company claims, not guarantees. A servicer’s staffing, procedures, documentation requirements, loan type, state, title work, and second-lien underwriting can all affect the timeline. A buyer should treat 45 days as a target rather than a promised closing date.

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See Roam’s stated buying process.

The critical calculation: the equity gap

The buyer does not assume the home’s full sale price. The buyer assumes only the remaining mortgage balance. The basic calculation is:

Purchase price − remaining assumable-loan balance = equity gap

The gap must be covered with cash, a second mortgage, seller financing, or another arrangement permitted by the lender and applicable law. This is the most important limitation on the model. A 2.25% first mortgage may look attractive, but the benefit can shrink if the buyer must finance a large gap with an expensive or short-term second loan.

Roam’s $420,000 illustration

Roam founder Raunaq Singh gave TechCrunch an example involving a $420,000 home with an existing mortgage rate of 2.25% and seller equity of $135,293. In the illustration, the buyer contributes $84,000—20% of the purchase price—and a second financing source covers the remaining roughly $51,000 equity gap. Roam said the resulting blended rate could be 3.45%.

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The implied assumed first-mortgage balance is approximately $284,707. Roam’s 1% buyer fee would be $4,200 before other transaction costs.

This is a company-provided example, not a typical or guaranteed result. The actual monthly obligation depends on the assumed loan’s remaining term and balance, mortgage insurance, taxes, homeowners insurance, the second loan’s rate and term, origination fees, Roam’s fee, and closing costs. Buyers should compare the complete combined payment and total interest—not just the 2.25% rate on the first lien—with a new standard mortgage.

FHA and VA assumptions are different

FHA loans

Roam says FHA loans are generally assumable when the buyer meets FHA credit, income, and other qualification requirements and receives lender approval. Roam’s agent materials state that an FHA assumption generally requires the buyer to occupy the home as a primary residence for at least one year.

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FHA mortgage insurance and other loan-specific costs also matter. A low interest rate does not necessarily mean a low total payment, particularly when the assumed loan carries ongoing insurance costs or when the equity gap requires a separate loan.

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HUD has stated that FHA-insured mortgages are assumable subject to applicable requirements. Buyers should confirm the exact rules with the servicer handling the loan.

VA loans

Qualified buyers, including non-veterans in some circumstances, may be able to assume a VA loan subject to lender and VA requirements. The seller’s entitlement is a crucial issue. If a non-veteran assumes the loan, the seller’s VA entitlement may remain tied to that loan until it is paid off or refinanced.

That can affect a veteran who wants to use VA entitlement to buy another home. The seller should obtain a clear explanation of whether the transaction provides a substitution of entitlement or leaves entitlement encumbered. The buyer’s low rate may not be enough to make the transaction attractive if the seller will not accept those consequences.

See the Department of Veterans Affairs home-buying guidance.

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Roam’s business model

Roam told TechCrunch that it charged buyers 1% of the purchase price. Its current FAQ likewise says the buyer pays a 1% service fee through closing and that Roam is not the mortgage lender. On a $420,000 purchase, that fee would be $4,200.

Roam reported approximately $200 million in facilitated home sales for several hundred buyers in 2024 and more than 200,000 registered buyers. Those figures were company-reported and should not be confused with audited revenue, completed purchases, or profitability.

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  • CONFIDENTLY AND EASILY SOLVE: Clients' financial questions whether they're buyers, sellers, investors or renters. Increase your perceived professionalism as a new agent, experienced broker or seasoned loan officer. Close more home sales and impress your clients with fast, accurate answers to all their real estate finance questions from PITI Payments to IRR, NPV and Cashflows
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  • FIGURE OUT THE RIGHT LOAN: For your client at the press of a button for jumbo, conventional, FHA/VA, or even 80:10:10 or 80:15:5 combo loans; check to see if ARMs or bi-weekly loans, quarterly payments or if interest-only payments are the answer; giving your client more choices; easily perform what if loan or TVM calculations find loan amount, term, interest or PITI or PI payments
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As a rough illustration only, $200 million in facilitated sales multiplied by a 1% fee equals $2 million in implied gross fee volume. That is not reported revenue or profit: it could exclude refunds, failed transactions, concessions, operating costs, financing economics, and transactions that did not incur the standard fee.

The financing article also reported that Roam operated in 17 states at the time and expected to facilitate $1 billion in sales during 2025. The reviewed sources do not establish whether that projection was met, whether Roam expanded nationwide, raised additional capital, changed its fee structure, or became profitable.

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How buyers should evaluate an assumable purchase

1. Measure the rate advantage

  • Compare the existing mortgage rate with current new-loan offers.
  • Confirm the remaining principal and remaining term.
  • Include FHA mortgage insurance or VA-related costs.
  • Determine whether the low rate applies to a large enough balance to matter.

2. Price the equity gap

Calculate the purchase price minus the assumable balance. Then obtain written terms for any second mortgage, including its rate, term, monthly payment, variable-rate provisions, origination fees, prepayment penalties, and lien position.

Roam’s FAQ says buyers may qualify for as little as 5% down in some circumstances and 10% in Texas. These are not universal rules; the required cash depends on the property, loan, borrower, state, servicer, and gap-financing arrangement.

3. Confirm qualification

Ask the servicer and any financing provider about credit, income, debt-to-income, asset, occupancy, appraisal, and documentation requirements. Obtain written confirmation that the buyer can assume the specific loan. A pre-qualification letter from a platform does not replace the servicer’s approval.

4. Add every cost

The comparison should include:

  • Roam’s 1% service fee
  • Title, escrow, recording, inspection, appraisal, and standard closing costs
  • Assumption-related administrative fees
  • FHA, VA, or other program costs
  • Second-mortgage origination charges
  • Prepaid taxes, insurance, and reserves

Roam says assumption costs are often lower than those of a new mortgage, but that is a general company claim. Actual costs must be verified for the transaction.

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What sellers need to know

A seller should verify that the loan is actually assumable, that the buyer is approved by the servicer, and that the seller will receive the agreed equity at closing. The seller should also obtain a formal release from liability rather than assuming that a buyer’s payments alone end the seller’s responsibility.

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For a VA loan, the seller should specifically address entitlement. The seller should also ask who pays the mortgage if approval is delayed, what happens if the second financing falls through, whether the buyer’s documentation is complete, and what contractual protection applies if the transaction does not close.

Roam says it works to release sellers from liability and may provide payment protection after 45 days. Those protections must be reviewed in the actual contract; they should not be inferred from general marketing language.

Where the thesis could fail

  • The equity gap is too large. A low-rate loan is less useful when the buyer must bring or finance a large amount of seller equity.
  • The second mortgage erases the savings. A high-rate, short-term, variable-rate, or fee-heavy second lien can make the combined cost close to or higher than a new mortgage.
  • Approval takes too long. Servicer review, title issues, missing documents, or secondary-loan underwriting can delay closing.
  • The loan’s program costs are significant. FHA mortgage insurance and VA entitlement considerations can change the economics.
  • The home is eligible but unavailable. A potentially assumable loan does not mean the owner wants to sell, the home is listed, or the buyer can afford the property.
  • Interest does not convert into transactions. More than 200,000 registered buyers indicates interest, not qualified buyers, completed purchases, conversion rates, customer-acquisition efficiency, or profitability.

Similarly, the reported $1.4 trillion of FHA and VA mortgages originated in 2020 and 2021 is not the same as $1.4 trillion of homes currently available for sale. The addressable market is reduced by homes that are not listed, loans that have been refinanced or paid off, small remaining balances, large equity gaps, unqualified buyers, property restrictions, and servicer delays.

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Is Roam really the future of housing?

Roam is addressing a real friction point: many existing mortgages carry rates that are materially below the cost of a new loan, while the owners of those mortgages may be reluctant to move. A platform that makes assumptions easier to find, underwrite, finance, and close could create value for buyers, sellers, agents, and servicers.

But assumable mortgages are not a universal replacement for ordinary purchase loans. The model works best when the existing balance is large, the rate advantage is meaningful, the buyer qualifies, the seller accepts the terms, the servicer executes promptly, and the equity gap can be financed at a reasonable cost.

The April 2025 funding round demonstrates investor confidence in Roam’s approach. It does not establish the company’s current transaction volume, state footprint, valuation, profitability, post-funding capital, fee structure, or actual 2025 performance. Those outcomes matter more than the headline projection.

For buyers, the right question is not simply, “Can I assume a 2.25% mortgage?” It is: “What will my complete monthly payment and total borrowing cost be after the assumed first mortgage, equity-gap financing, insurance, taxes, fees, and closing costs?”

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Written by TheFinanceBase Team

The Team behind TheFinanceBase.

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