The financial plan showed $5,500 in positive annual cash flow.

Four investment properties. $3.1 million in equity. Modeled into the retirement projection. Flowing through the Monte Carlo at 83%. The advisor had built the plan around it. The client had been living around it.

The actual cash flow, once you ran the per-property numbers: −$9,800.

A $15,000 swing on a $3.1 million equity position. Not a rounding error. Not a data entry mistake. A structural failure, the kind that happens when real estate sits outside the plan.

What makes this case worth writing about is not the number. It's the client's reaction. When the advisor was finally able to show the real picture, property by property, income against actual expenses, net cash flow per asset, the client said: "We don't look at our real estate very often. We just go, why are we cash poor? But we have five houses."

That sentence. Why are we cash poor? But we have five houses.

Five houses, four of them rentals. That's the real estate blind spot from the client's side. The asset is visible. The performance is not. The plan says one thing. The bank account says another. And for years, sometimes decades, the gap between those two things is a mystery the client lives with but cannot explain.

The advisor had not made an error. The planning software had captured what it was built to capture: the rental income, the mortgage, and the fixed costs you can read off a statement, property taxes and insurance among them. Income in, known costs out, $5,500 positive. What it could not capture was what each property actually costs to operate. No per-asset P&L. No way to reconcile what the plan assumed against what the properties were actually doing. The lie was built into the infrastructure.

It comes down to which costs the plan can actually see. Planning software captures the lines that sit in front of an advisor: the income a rental produces, the mortgage against it, the fixed costs like property taxes and insurance. On these four properties, that math looked healthy, roughly $5,500 in the black.

But those lines aren't the whole cost of owning a rental. The expenses that actually move the number are the variable ones: maintenance, vacancy, repairs, property management, and capital expenditure reserves. They're harder to pin down, they shift year to year, and they almost never get modeled accurately at the property level. They are the entire distance between the $5,500 the plan showed and the −$9,800 the properties actually produced. An advisor working from the plan's number is modeling a fiction.

And that fiction doesn't stay on the cash flow line. An 83% Monte Carlo probability, built on a portfolio the plan booked as positive when it was draining $9,800 a year, isn't really 83%. Sequence-of-returns risk, Social Security timing, withdrawal rates: every one of them inherits the wrong number. One bad input in the planning layer doesn't stay there. It propagates.

The repair started the same way the problem did, with the per-property numbers. When the advisor ran them, the portfolio that looked like a wash told a different story. One property was generating roughly $46,000 a year, the only positive line in the portfolio. The other three drained a combined $55,000. The household's retirement income wasn't diversified across four properties. It was structurally dependent on one, quietly subsidizing the other three.

That changes the conversation entirely. The moment the carrying property hits a vacancy or a soft market, the plan breaks. But seeing the problem is only half of it. The value is what comes next.

Take one of the draining properties. The advisor models the paths side by side: hold it and absorb the loss, sell it and reinvest the proceeds into a balanced portfolio, or sell it and 1031-exchange into a vehicle that defers the tax and produces passive income. Same property, three futures, each measured against the client's retirement goal. The client picks the one that fits.

That's what the planning layer makes possible. Not just a more accurate number, but a decision. The advisor stops asking the client what to do and starts showing them what each path actually means for the plan.

I want to be precise about one thing. The advisors running these numbers wrong are not cutting corners. They are using the tools they have. And the tools they have were not built to see this. The FPA found that only 3% of planners actively manage directly-held real estate. The other 97% aren't indifferent. They're without infrastructure.

The cash flow lie persists not because advisors don't care about accuracy, but because the system was built to capture a single rental income line, and no one ever built the layer beneath it.

We're building that layer.

Market Implications Right Now

The gap between what a rental earns and what it actually nets has widened, and it isn't narrowing.

Start with insurance. Federal Reserve economists, using commercial real estate loan data, found that the average cost of multifamily property insurance rose from $39 per unit per month in 2019 to $68 in 2024. More than a 75% increase in five years. And it mostly stayed with the owner. The same researchers found little relationship between rising insurance costs and asking rents, and no evidence that landlords cut other expenses to offset the hit. The cost lands on the property's bottom line, not the tenant's.

Insurance is just one line. Property taxes, maintenance, repairs, and management have all moved the same way. Stack them together and they are large enough to turn a portfolio that looks cash-flow positive into one that is quietly losing money, which is exactly what happened to the four properties above. The danger was never any single cost. It was that all of them got rolled into one estimated line on the plan, where no one could see how large they had grown or which property was carrying them.

Now consider how many clients this touches. A WMIQ/Realized survey of more than 500 advisors found that, on average, 18% of their clients own investment real estate, with a median holding near $750,000. Nearly one in five client households is carrying an asset of that size, running on expenses most plans never break out.

These costs are real, they are rising, and on most plans they are invisible. Seeing the true number, property by property, is where it has to start. What the advisor does with that number is where it changes the plan.

Leveridge models exactly this for every investment property in a client's portfolio: hold, sell, or exchange.