Build Wealth Without Losing Your Life: Bree Hartman on Self-Storage and Seller Financing

Most investors think the path to wealth runs through complexity — more doors, more strategies, more moving parts. Bree Hartman built hers on a business so unglamorous that most people drive past it every day without a second thought. On this episode of The REI Agent podcast, Bree joined Mattias to explain how self-storage, seller financing, and a stubborn commitment to simplicity took her from a Sacramento cubicle to a portfolio that funds slow mornings with her daughter.

How Did Bree Hartman Go From Cubicle to Self-Storage Investor?

Bree describes her starting point with a phrase that disarms anyone waiting for a pedigree: “I was a mom with a phone.”

She spent seven years as a W-2 employee working for Fish and Wildlife in Sacramento, California, and by her own account she was suffocating. So she did what a lot of frustrated employees do — she started a business. She opened a gym, and she learned quickly that entrepreneurship is not automatically freedom. Sixty hours a week on other people’s schedules, very little money, no vacation. She had traded one cage for a busier one.

The real shift came when she got pregnant with her daughter. That was the wake-up call. She had one accidental rental at the time, and her first instinct was the classic beginner plan: own twenty of these and live on passive income. Then reality arrived. Toilets. Tenants. California’s tenant-friendly regulations. Service dog issues. The “passive” part of passive income turned out to be doing a lot of heavy lifting in that sentence.

So she went looking for something bigger and simpler. She heard investors on a podcast describe self-storage — no toilets, no tenants, no employees, fewer headaches — and she was sold. Less than twelve months after she started learning, she bought her first self-storage facility. She was in her late thirties. She wasn’t a 22-year-old prodigy with a trust fund. She was a working mom who decided that the answer wasn’t to work harder but to work on a smarter asset.

Notably, she still owns that accidental rental. It’s across the street from where she lives now, which makes it easy. She’s not against single-family rentals — she just refused to build an entire future on them.

Why Does Self-Storage Work So Well for Busy Investors?

The appeal of self-storage isn’t that it’s exciting. The appeal is that it’s boring in all the right places.

There are no tenants living inside your asset. There are no 2 a.m. plumbing calls. Operating expenses run lower than most residential and commercial alternatives. Turnover is cheap — a unit gets swept out and re-rented. And because it’s commercial real estate, value is driven by net operating income rather than by whatever the neighbor’s house sold for, which means an operator who improves the business directly improves the asset’s worth.

That last point is the one most agents and investors underappreciate. In single-family, you’re largely a passenger on the market. In self-storage, you’re the driver. Raise rates, cut expenses, add revenue lines, and the property is worth more — regardless of what the residential comps are doing.

Mattias made a related point that runs through the whole conversation: diversification matters. If your entire portfolio is single-family homes in one market, a single legislative change can reshape your returns overnight. Bree lived that in California. Owning a different asset class in a different geography isn’t just about chasing yield — it’s about not having one law or one local downturn hold your whole financial life hostage.

What Is the Market Rule of Fives?

Bree teaches a framework through Self Storage School that she calls the market rule of fives, and it’s essentially a filter for finding overlooked opportunities instead of bidding against institutions.

Rather than competing for facilities in first- and second-tier markets where private equity is already circling, she looks at third- and fourth-tier communities that are still growing. Her rough screen: populations in the range of about 5,000 to 120,000, median household incomes near or above $50,000, and positive population growth.

Then she hunts for signs of operational upside. And the clearest signal is almost comically simple: the facility doesn’t have a working website.

Some owners have run profitable storage businesses for decades with no online leasing, no marketing automation, no modern software. To a lot of buyers, that looks like a dated business. To Bree, it looks like a value-add plan already written for her.

She demonstrated it live during the episode. She pulled up Sullivan, Missouri on Google Maps, searched for local self-storage, and within moments found facilities with little or no online infrastructure. One looked clean and well located but appeared to have no website at all. Her reaction wasn’t to dismiss it — it was to imagine modernizing operations, improving marketing, adding services, and starting a conversation with an owner who may have never seriously considered selling.

“I think we make it sound harder than it really is,” she said. That may be the most useful sentence in the entire episode. Investors can spend years studying increasingly sophisticated strategies while ignoring straightforward opportunities sitting in plain sight on a map.

Her breakthroughs didn’t start with software. They started when she picked up the phone and called owners — learning how to listen, how to build a relationship, and how to eventually ask whether someone might ever consider an offer. Those conversations became opportunities, and opportunities became deals.

How Many Revenue Streams Can One Storage Facility Have?

Another assumption Bree dismantles: that self-storage income means renting empty units.

Depending on the property, a single facility might contain traditional drive-up units, climate-controlled units, leasable office space, RV and boat storage, tenant protection plans, portable storage units, billboard space, and expansion land. The office attached to the building could be leased separately. Extra acreage could hold future units. A billboard could generate another monthly check.

“People just forget that boring businesses get to have just as much fun as hotels,” Bree said.

The property still looks unremarkable from the road. The income statement looks very different. And critically, none of those additions require the business to become complicated — they’re small improvements that compound.

Can You Really Buy Commercial Real Estate With Seller Financing?

This is where the episode gets concrete, and where a lot of limiting beliefs go to die.

Bree walked through a facility she bought for roughly $500,000 — about 83 units across approximately 12,000 square feet. The seller owned it free and clear and wanted to retire. Instead of a conventional bank structure, they built a seller financing arrangement: roughly 15 percent down, 5 percent interest, amortized over a seven-year term.

That structure served both sides. The seller kept receiving income rather than taking a single large taxable lump sum. Bree got financing terms that supported cash flow from day one.

Then the value-add work began. Rates were raised. Expenses were trimmed. A website went live. Tenant protection plans were introduced. Security cameras were installed. Portable units created a new income line. Every one of those moves lifted net operating income, and in commercial real estate, lifting NOI lifts value — setting up an eventual sale or exchange into something larger.

But Bree’s framing of seller financing goes beyond terms. She believes the strongest deals solve a problem for both parties. A retiring owner may want steady monthly income. Another may want to avoid a lump-sum tax hit. Some sellers genuinely care who takes over the business they spent thirty years building. That makes the relationship part of the transaction.

“It’s not always about price,” she said. Sometimes it’s about trust. Sometimes it’s about timing, or legacy, or simply structuring the terms so the deal works for everyone at the table.

She shared one more story that should reset a few expectations. A Self Storage School student nurtured a relationship with an owner for about five months and eventually purchased a roughly 10,000-square-foot self-storage property in Texas for $90,000 using seller financing. The down payment was approximately $9,000.

Her point wasn’t that every facility can be bought for $9,000 down. Her point was that the belief “commercial real estate requires a fortune” stops people before they ever have the first conversation. “I really think that’s the limiting belief that really just stops people.”

Why Does Every Deal Need an Exit Plan?

Bree is emphatic that buying is only half the strategy. An investor should understand both how they’re entering a deal and how they might eventually leave it.

“People that don’t have a plan, they’re just making a wish.”

A value-added facility could be sold. It could be refinanced with capital redirected into a larger property. Or it could simply be held for income if that better serves the owner’s goals. What matters is intentionality — knowing before closing day what the property is supposed to accomplish, how its income will grow, what will drive its value, and how it moves the investor closer to the life they actually want.

What Does Bree Say Wealth Is Actually For?

Midway through, Mattias steered the conversation toward the question at the center of The REI Agent podcast: what’s the point of building wealth if the process leaves you exhausted, disconnected, and unable to enjoy the people you love?

For Bree this isn’t hypothetical. She has deliberately designed her investment strategy around the life she wants with her daughter. Her definition of success includes easy mornings. It includes what she calls Hot Tub Wednesdays before school. It includes being able to sleep without worrying that an emergency will wreck her peace.

She also pushed back on the industry’s default assumption that bigger is better. More doors don’t automatically produce a better life. More revenue doesn’t automatically produce more peace. Growth can quietly create a beast that has to be fed forever. Her stated plan is deliberately modest by influencer standards — acquiring two to five strong deals a year and building a boutique storage equity firm that serves her family, her goals, and her partners.

“I think that’s really what we’re here to do, is to have a life on purpose and to have life options and not just create another job.”

She and Mattias also traded philosophy on the mechanics of that freedom. Mattias’s familiar principle: build enough investment income to cover personal expenses, and options appear — an agent can be pickier about clients, a family can travel, anyone can sleep better not depending entirely on the next commission. Bree took it a step further. Once expenses are covered, the question becomes compounding: “How do you compound that money and leverage it the right way where you don’t have to work harder, but you’re working smarter with your money over the long haul for your family?”

Her two guiding principles are unglamorous and durable: live below your means, and invest often. Neither will trend on social media. Both quietly reduce dependence on constant income generation.

On taxes, both Bree and Mattias were careful to note they aren’t accountants and that investors should talk to qualified professionals. Bree described a wealth triangle of cash flow, growing net worth, and depreciation — with depreciation as the cherry on top rather than the reason to buy. The property has to make sense as an investment first.

What Advice Does Bree Give Investors Who Haven’t Started?

Her closing advice applies far outside self-storage: pick an asset class, learn it deeply, find people actually doing the thing you want to do, and take action.

“Don’t spread yourself thin, just go like a mile deep.”

There will always be another trend, another model, another person online making a different path look easier. Progress usually comes from choosing a direction and staying with it long enough to get good. She encourages finding mentors or communities led by people close enough to the journey to know what the next few steps actually require. You don’t need every answer — you need enough to take the next intelligent action.

She was also honest about how uncertain the beginning felt. She put her house on the line. She took risks while pregnant. Family members thought she was crazy. “Sometimes you have to be a little bit insane in order to reap those benefits.” Five years later the portfolio exists and the life exists — but the uncertainty didn’t resolve before she acted. She acted while it was still uncertain.

And she left one image that captures the whole opportunity. Some long-time owners still run profitable facilities on handwritten records and yellow legal pads. If someone in their seventies can operate the business that way, today’s investors shouldn’t convince themselves it’s too complicated to learn. Modern tools — websites, call centers, remote management, AI — make it easier, not harder.

“Don’t overcomplicate it. Keep things simple.”

About Bree Hartman

Bree Hartman is a self-storage investor and the founder of Self Storage School, where she teaches investors and W-2 employees how to find, fund, and buy their first cash-flowing self-storage facility. A former Fish and Wildlife employee turned gym owner turned commercial real estate investor, she is based in Sacramento, California, and focuses on overlooked third- and fourth-tier markets, seller-financed acquisitions, and value-add operations. She is currently reading 10X Is Easier Than 2X by Dan Sullivan and Dr. Benjamin Hardy and Buy Back Your Time by Dan Martell — and The Seven Husbands of Evelyn Hugo purely for fun.

Connect with Bree Hartman:

• Self Storage School
• Facebook
• Instagram
• LinkedIn
• YouTube

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