Mark Spain Real Estate and Opendoor both advertise cash offers and quick home sales, but there are big differences in the way they operate.
- As an iBuyer, Opendoor purchases homes outright — typically for less than market value — in order to resell them on the open market. It charges a 5% service fee in exchange for a quick cash sale.
- As a real estate brokerage, Mark Spain pairs home sellers with a listing agent to present cash offers from investors and other iBuyers alongside the option of a traditional listing. Whether you accept a cash offer or put your home on the market, you'll pay a standard listing commission to your Mark Spain agent.
If you need to sell fast, your best bet is to shop offers from a variety of cash buyers. Requesting an offer is always free and comes with no obligation to sell, so it’s in your best interests to seek multiple offers.
A free service like Clever Offers can save you a ton of time getting offers and figuring out your best option. With Clever's 5-star rated service, you can compare offers from iBuyers, local investors, and more to the sale price you'd get with an agent. Sell in as little as 7 days for the highest cash price.
Mark Spain vs. Opendoor: What's the difference?
| Mark Spain | Opendoor | |
|---|---|---|
| 💼 How they work | Pairs sellers with an agent to present offers from 3rd parties, such as investors or iBuyers | Makes direct cash offers and allows sellers to chose their own closing date |
| 💰Offers | Offers depend on the variety of investors and iBuyers available in the area | Offers come directly from Opendoor and are typically slightly below market value |
| 💵 Fees | Standard realtor fees (typically 5–6%), plus any fees charged by the buyer | 5% service fee, plus repair costs |
| ⭐️ Customer rating | 4.6/5 (5,601 reviews) | 4.21/5 (4,460 reviews) |
| 📍 Availability | Select markets in FL, GA, NC, TN, TX | Nationwide |
Both Mark Spain and Opendoor can furnish a cash offer for your house, but they work very differently. Opendoor buys your home directly — no agent required — while Mark Spain assigns you a listing agent who sources offers from third-party investors and iBuyers on your behalf. That middleman structure is the most important difference between the two: With Mark Spain, you'll have to pay a realtor commission even on a cash sale, and your offer quality depends entirely on which buyers your agent can reach.
It also means the experience can be less straightforward than sellers expect. Many customers who contacted Mark Spain specifically for a cash offer report being steered toward a traditional listing instead — sometimes without ever seeing a cash offer. For example, a review posted to the Better Business Bureau on April 21, 2025 provided this description of Mark Spain's Guaranteed Offer program:
I contacted **** Spain for a cash offer.. The agent started talking about a listing and showings. I brought up the guaranteed cash offer mentioned in the ad. She said we try to get you an offer. If there are no offers then we will list it as a house for sale. In order to get a cash offer I must sign a listing agreement, agreeing to sell my house thru *** real estate services. In other words they are just looking for houses like any other real estate company, only they use very deceptive ways to get a listing."
Opendoor, by contrast, gives you a direct offer within 24–48 hours, with no obligation to proceed. Opendoor is also significantly more widely available, operating in major metro areas across the U.S., while Mark Spain's primarily operates in the Southeast.
Customer reviews indicate that Mark Spain may even present an offer from Opendoor if you're in one of their service areas. However, there's no requirement to work with an agent when selling to Opendoor. If you do accept an iBuyer's offer through Mark Spain, you'll pay a standard realtor commission on top of any service fees.
Mark Spain vs. Opendoor: How they work
| Mark Spain services | Opendoor services |
|---|---|
|
|
Mark Spain pairs sellers with a real estate agent to present options
Mark Spain Real Estate is a real estate brokerage headed by Mark Spain, a former Keller Williams agent who founded the company in Atlanta in 2016. It has since expanded to major cities throughout the Southeast and has repeatedly been named one of the fastest growing companies in America by Inc. Magazine.[1]
Mark Spain offers a range of real estate brokerage services, including a Guaranteed Cash Offer program for home sellers (cash offers sourced from third-party investors and iBuyers) and traditional brokerage services for buyers and sellers. To get a cash offer, you must first sign a listing agreement with a Mark Spain agent. See the full breakdown of how Mark Spain works.
Opendoor makes direct cash offers on homes
Opendoor was founded in San Francisco in 2014 and is the largest iBuyer in the country. It offers a couple of different ways to sell your home, including its core cash offer service (Sell to Opendoor) and a newer hybrid called "Cash Now, More Later," which was launched in 2025.
With Cash Now, More Later, Opendoor pays you a cash price upfront, then renovates and resells your home, passing along any additional proceeds above the initial offer price — minus fees and renovation costs. By Q4 2025, Cash Now, More Later represented approximately 35% of Opendoor's weekly acquisition volume.[2] See the full breakdown of how Opendoor works.
Offers
Opendoor typically pays slightly less than market value
During the early 2020s, iBuyers like Opendoor gained a reputation for paying at or even above fair market value for homes. But since the housing market has cooled, so have their offers.
"Before 2022, iBuyers' offers were competitive," explains Christopher Trumbach of Florida Prestigious Homes. "They were coming in close to market value, or at least what the sellers were looking for. But when the market changed, they started slashing the numbers. So now, the way the market is here, I've not really had anybody motivated to go with the iBuyers."
Our team recently analyzed more than 400 homes purchased by Opendoor between 2023 and 2025. The data from these properties showed that, on average, Opendoor pays 8.79% less for homes than it eventually resells them for. Using the resale price as a gauge of market value, a seller with a $500,000 home can expect to leave about $43,950 on the table when selling to Opendoor, before accounting for service fees and repair costs.
Average purchase price vs. resale price on Opendoor properties
| Average purchase price | Average resale price | Average price difference |
|---|---|---|
| $338,560 | $366,844 | $26,376 (8.79%) |
While these figures are averages, individual sellers may see a wider or narrower margin between Opendoor's offer price and resale price. Brandon Capelle, a realtor with ReMax Advantage Plus in Minneapolis, recently helped a buyer close on an Opendoor home, noting that Opendoor had purchased the property for $234,000 in January 2025 and relisted it at $262,000 just three months later — a margin of roughly 12%.[3] "I don't know how they're actually really making a whole lot of money," Capelle told us. "They need some pretty massive volume."
Mark Spain doesn't make direct offers
Mark Spain doesn't set its own offers — they come from whichever investors or iBuyers your assigned agent can reach. Offer quality varies widely by market and by buyer. A recent survey of over 700 real estate investors found that investors typically aim to offer between 60–80% of a home's after-repair value, with a median offer of 67.5%. iBuyers may come in closer to market value, but they also charge service fees and make deductions for repairs.
Andrew Velez, a Realtor with ReMax Advisors in South Florida who has worked with several iBuyer programs, told us that offers around 80–85% of value aren't unusual — and that sellers typically reject them unless they're under real pressure to sell.[4] "I think those iBuyer scenarios work for a probate case or an inherited property," he said, "but otherwise the sellers want more money."
Fees and other costs
| Mark Spain | Opendoor | |
|---|---|---|
| Service fee commission | 6% listing fee* | 5% service fee |
Mark Spain charges a standard realtor commission
Mark Spain charges home sellers a realtor commission on all home sales — whether you put your home on the market or request a cash offer. While not publicly disclosed, reviews for Mark Spain indicate rates are typically 3–3.5% of the home sale price, slightly above the industry average of 2.5–3% and well above the 1–2% commission rate you can find with some brokerages. In a typical cash offer scenario, you can avoid paying realtor fees altogether, since you'll be dealing directly with the buyer.
Opendoor charges a 5% service fee
Opendoor charges a service fee of 5% for both its iBuyer and Cash Now, More Later programs. Sellers also pay standard closing costs of roughly 1%. If you need extra time in your home after closing, Opendoor offers a leaseback option for up to 17 days at a daily rate based on your home's market rental value.
Repair deductions are the biggest unknown with Opendoor. They're only finalized after Opendoor's inspection, and reviews suggest they can range from negligible to tens of thousands of dollars. While there's no fee to cancel at this point, it may be too late if you're depending on the cash from this sale to close on another house.
Charlotte-area realtor Melissa Young describes a pattern she's seen among sellers: "The offer in the beginning seemed reasonable, but after going through inspections, a lot of things changed. By that point it was too late — their son was already under contract on a new construction home closing in about a week. It felt like bait and switch."
Customer reviews
| Mark Spain | Opendoor |
|---|---|
| 4.6/5 (5,601 reviews) | 4.21/5 (4,460 reviews) |
Mark Spain reviews are positive, with some complaints about its Guaranteed Offer
Mark Spain reviews are generally positive. The company has a 4.6 average rating across 5,601 online reviews.
Most positive reviews are from customers who have listed with Mark Spain and have had good experiences with their agents. For example, these customer reviews are typical of many:
“Mark Spain sent a great agent ... to us, and we could not have been happier. He spent a lot of time with us and answered all of our questions. He helped us pick a great price and we got more than we even expected.” — Daniel G., Google
However, reviewers who tried the Guaranteed Offer program specifically tend to be less satisfied, citing low offers and pressure to sign a listing agreement.[5] [6] [7]
As this reviewer said, “MS does not offer the cash themselves. They have 'Investors' who will gladly take your property and in my case, for $120,000 less than the asking price.”
Another customer noted, “This company was a nightmare. My husband and I reached out to them due to offering a guaranteed cash offer. We needed to sell and relocate quickly for work. Never got a cash offer. We were coaxed into putting the house on the market.”
Opendoor reviews are mostly positive, with some complaints about repair costs
Opendoor reviews are also good overall. The company gets especially high marks for its convenient process, which removes a lot of the hassles of selling a house the traditional way (preparing the home for sale, vacating for showings, etc.). For example, this review from Trustpilot is relatively typical for Opendoor:
"For me, the cut they take off of the price of your home is well worth the hassle they remove from the process. I was able to set the date that we closed, not have to worry about preparing for showings, I didn't have to worry about how long it would be on the market before sale, and I was able to put that time and energy into planning the rest of my move."
Opendoor complaints tend to revolve around unexpected repair deductions and final offers being significantly lower than initial estimates. As one recent customer said:
“They first offered a decent offer, then after they come, they lower the offer. Then add a huge amount for repairs which were not needed.”
Availability
| Mark Spain | Opendoor | |
|---|---|---|
| Locations | Select markets in FL, GA, NC, TN, TX | Nationwide |
| Purchase criteria | Post-1950 single-family homesValued between $50,000 to $1.5 millionOwner-occupied or vacant | Post-1930 constructionLot size up to 2 acresValued under $1.4 millionOwner-occupied |
Mark Spain operates primarily in the Southeast and Texas
Mark Spain Real Estate operates in the following markets:
Jacksonville, FL, Orlando, FL, Tampa, FL, Alpharetta, GA, Athens, GA, Atlanta, GA, Buford, GA, Marietta, GA, Stockbridge, GA, Charlotte, NC, Greensboro, NC, Raleigh, NC, Nashville, TN, Dallas, TX, Fort Worth, TXTo qualify for Mark Spain's Guaranteed Offer program, your home generally needs to be a single-family home built after 1950, valued between $50,000 and $1.5 million, and owner-occupied or vacant. Homes in or near flood zones, with significant foundation issues, or with unpermitted additions are typically ineligible, as are distressed or bank-owned properties.[8] However, meeting the minimum purchase criteria doesn't guarantee that Mark Spain will make a cash offer on your home.
Opendoor operates in major markets across the U.S.
Opendoor currently buys homes nationwide, including major metros, suburban areas, and smaller cities throughout the contiguous United States.[9]
Opendoor's nationwide expansion comes alongside a broader restructuring as it works to rebuild profitability under new leadership and a strategy it calls "Opendoor 2.0." While the company purchased just 8,241 homes in 2025 — roughly half the 14,684 it purchased in 2024 — home purchases rose 46% quarter-over-quarter in Q4 2025, suggesting the business is stabilizing.
Regardless of location, Opendoor's offers are limited to single-family homes and townhomes (condos and duplexes in select areas) that are owner-occupied or vacant, not in foreclosure, and free of significant structural issues or unpermitted additions. Again, meeting Opendoor's eligibility criteria doesn't guarantee an offer.
Alternatives to using Mark Spain or Opendoor
Sell to another cash home buyer
Selling to Mark Spain or Opendoor isn't the only way to sell your house fast for cash.
Many cash buyers have less stringent purchasing criteria than either Mark Spain or Opendoor. Local or regional buyers may be a better option if you have a hard-to-sell home, such as a distressed property or one in foreclosure.
Offers can vary a lot from one cash buyer to another. This is why it's important to shop around.
📍 Find the best cash buyers near you
Our research team has evaluated thousands of companies to find the best cash home buyers across the United States.
If you're looking for the best companies that buy houses for cash in your area, check out our comprehensive rankings for all 50 states and Washington, DC.
List on the MLS and use a cash offer as backup
Cash offers provide speed and convenience, but there's typically a financial tradeoff associated with that.
Minneapolis-based realtor Brandon Capelle puts it in practical terms: "I totally get the allure of iBuyers for sellers who've got a lot of equity. But if your net is going to be $50,000 on a conventional sale and you talk to an iBuyer and your net drops to $20,000 — even if the percentages are similar — that hurts more."
Unless you need to sell right away, you're often better off listing your house on the MLS with a real estate agent — preferably one that offers a low real estate commission. Many agents have strategies for selling on a tight timeline and may even already know buyers who are looking for a particular type of property.
For added security, you can use a cash offer as a backup. As Barry Richards, Principal Broker at EXIT Realty Garden Gate Team in Springfield, Tennessee, says: “You're going to get the most money when you have people compete with each other, and that's going to happen when you list on the MLS. But you can use that iBuyer's offer as a baseline.”
If you're on the fence about which route to take, we suggest finding an agent who understands your need to sell fast, and is willing to modify their listing agreement to include a shorter listing period and cancellation clause. If they can’t sell by a certain date, you can then sell to a cash buyer instead.
