Most people who lose money on a property didn’t overpay by much. They bought at a defensible price, in a reasonable location, with financing they could explain to anyone who asked. Then the roof needed work, the insurance renewal came in at a number nobody modeled, the tenant left for four months, and the tax bill arrived reassessed. The purchase was fine. The ownership is what broke them.
That gap between buying a property and carrying one is the part of real estate investing that gets the least attention and causes the most damage. When people ask me about Garrett O’Rourke real estate thinking, they usually want to talk about markets and timing. I’d rather talk about the monthly outflow, because that’s what actually determines whether an investment survives long enough to benefit from a market at all.
What I’ve seen on the operating side
My background is in sales, business development and call-center operations — running teams, building repeatable processes, and living with the consequences of bad assumptions. Running a business teaches you that revenue projections are the fun part and the expense line is the honest part. You can be excited about a new market, hire aggressively, sign a lease, and still find yourself six months later staring at overhead you never fully priced.
Property works the same way. In my experience, investors underwrite the upside in detail and the downside in vibes. They’ll debate appreciation potential for an hour and spend four minutes on insurance. In South Florida in particular, that ratio is backwards. Anyone who has owned or evaluated property here knows that premiums, wind mitigation, flood considerations and association assessments aren’t footnotes — they’re a meaningful share of the annual cost of holding the asset.
Over the years, the properties I’ve looked hardest at weren’t the ones with the most impressive photos. They were the ones where I could build a boring, believable list of everything the property would demand from me every month, whether or not a tenant paid on time.
Why the hidden costs stay hidden
A few reasons, and none of them are about intelligence.
- The headline number is the purchase price. It’s the one figure everyone repeats. Carrying costs are spread across a dozen line items that arrive at different times of year, so they never form a single scary number in your head.
- Sellers advertise the past, not your future. The taxes on a listing sheet may reflect the current owner’s assessment and exemptions, not what you’ll pay after a sale. The insurance figure may be an old policy. The maintenance history may be optimistic by omission.
- Deferred maintenance is invisible until it isn’t. Roofs, HVAC systems, water heaters, plumbing and windows all have a useful life. A property that looks clean can still be two years from a large, non-negotiable expense.
- Vacancy feels theoretical. Until it isn’t. A unit that sits empty for two months has erased a sixth of the year’s rent while every other cost continues on schedule.
- Excitement compresses diligence. When you want a deal to work, your assumptions get generous. That’s human. It’s also the single most expensive habit in investing.
There’s also a structural issue: almost everyone involved in a transaction is paid when it closes. That’s not a conspiracy, it’s just incentives. As an investor, you’re the only person in the room whose interests are tied to what happens in year four.
Building an honest carrying-cost picture
Here is the discipline I’d apply to any property before getting attached to it. None of this is complicated. It’s just work that people skip.
1. Write down every recurring cost, monthly
Principal and interest. Property taxes at the rate you’ll pay, not the seller’s. Insurance — and for coastal markets, get an actual quote rather than an estimate. Association or condo fees, plus a realistic view of special assessments. Utilities you’ll cover. Lawn, pest, pool, elevator, trash, whatever applies. Management, even if you plan to self-manage, because your time isn’t free and you may not want that job in five years.
2. Reserve for maintenance before you need it
Treat maintenance and capital expenditures as fixed monthly costs, not surprises. Ask the age of the roof, the HVAC, the water heater and the electrical panel, then assume each will need attention within its remaining life. A property with a fifteen-year-old roof has a known future expense; you just haven’t paid it yet.
3. Underwrite vacancy and turnover as certainties
Tenants move. Between tenants you have cleaning, paint, repairs, listing time and often a leasing fee. Build an occupancy assumption you’d be comfortable defending in a slow market, not the one that makes the spreadsheet say yes.
4. Stress-test the things that move
Numbers matter, and the numbers most likely to move against you are insurance, taxes, interest costs on variable debt, and rent in a softening market. Run the property with insurance meaningfully higher, taxes reassessed, and rent flat or slightly lower. If it still works, you have a real investment. If it only works in the best case, you have a bet.
5. Decide what the property owes you
Cash flow, appreciation potential, tax treatment, diversification — pick the job you’re hiring this asset to do. A property that breaks even monthly might be perfectly fine if you knowingly bought it for long-term appreciation in a location you believe in. The problem isn’t negative cash flow; it’s unplanned negative cash flow.
Where negotiation actually earns its keep
Once you’ve done the ownership math, you negotiate differently. You’re no longer arguing about price in the abstract — you’re pointing at a roof with four years left, an insurance quote in writing, and an association with a pending assessment. That’s a much stronger position than enthusiasm.
One thing I’ve learned from years in sales: the person with the better information and the willingness to walk away usually sets the terms. Property evaluation is information gathering. When you’re responsible for a team, you learn quickly that the hard questions asked early are cheaper than the ones asked later, and real estate rewards the same instinct. Ask about the things nobody volunteers.
Patience matters here too. There’s always another property. The market in Miami Beach, like most desirable markets, produces a steady supply of deals that look urgent and a much smaller supply of deals that look good once you’ve priced the full cost of ownership. Sitting out the first category is not a missed opportunity; it’s the whole job.
The broader principle
Real estate is not automatically a good investment. It’s an operating business with a physical asset attached, and like any business, it lives or dies on the difference between money coming in and money going out. The asset can appreciate beautifully and still ruin you if you can’t afford to hold it through a bad eighteen months. Conversely, a modest property with honest numbers and a reserve account can quietly do exactly what you hoped for over a decade.
I’d rather own something boring that I understand completely than something exciting that depends on everything going right. That’s the core of how I think about Garrett O’Rourke real estate investing — respect the carrying costs, plan for the downside, and let time do the work that speculation can’t.
This reflects my personal perspective as a private investor and business operator, not individualized financial or investment advice. Every property, market and financial situation is different, and decisions like these deserve your own research and, where appropriate, guidance from qualified professionals.
Photo by 𝕡𝕒𝕨𝕤 𝕒𝕟𝕕 𝕡𝕣𝕚𝕟𝕥𝕤 on Unsplash