If you’re evaluating rental property deals today, you’ve probably faced this exact dilemma: Do you buy for immediate cash flow, or do you buy for long-term growth?

When you put two deal sheets side by side, cash flow almost always feels like the safer, more obvious winner. That’s exactly what happened when we looked at an actively marketed turnkey property in Memphis. 

Who wouldn’t want $287 more in their pocket every single month?

It’s an easy hook, but it raises a crucial question for any serious investor: Do those spreadsheet numbers actually survive in the real world?

Let’s dive in.

The Memphis Deal on Paper

On paper, the Memphis property presented what looked like a great investment:

• Purchase Price: $196,600
• Upfront Cash Needed: ~$60,073
• Day-1 Cash Flow: $487/month
• Projected 10-Year Return: 13.67% IRR

If you only look at the cover sheet, choosing Memphis feels like a no-brainer. It gives you immediate cash flow, a lower barrier to entry, and solid projected returns. 

But numbers on a spreadsheet are just empty promises until they are backed by real-world experience.

So I tested the numbers based on the math we know to be true at JWB.

Rebuilding the Deal with Real-World Math 

When I pulled back the curtain on the Memphis pro forma, the “winning” numbers started unraveling. The spreadsheet was built on assumptions that simply don’t hold up over a 10-year market cycle:

👉 What’s Wrong With This Memphis Pro Forma (Line-by-Line Breakdown)

1. Inflated Appreciation: The spreadsheet projected an 8% annual growth rate by stacking a “new construction boost” on top of regular appreciation. The reality? Memphis’s 40-year historical average home price growth is 3.2% per year.
2. Missing Turnover Costs: The deal relied on 1-year leases and budgeted zero maintenance spikes for when residents move out. Frequent turnovers mean painting, repairs, and vacant weeks, costs that were completely left off the sheet.
3. Understated Maintenance: They budgeted just 2.5% for maintenance over the first five years. Even on brand-new builds, 2.5% is unrealistically low for long-term upkeep.

When we rebuilt the Memphis deal using realistic, historically supportable numbers (and put it head-to-head with a Jacksonville property using the exact same honest standard), here’s the reality:

While Memphis puts roughly $250/mo more cash flow in your pocket upfront, Jacksonville generates over $57,000 more in total WEALTH over a 10-year hold.

Pressure-Test Every Deal Sheet

Anyone can make an Excel spreadsheet look like a home run, but your bank account lives in the real world. To protect your capital, you have to pressure-test deal sheets rather than taking them at face value.

👉 7 Things to Check Before Buying a Rental

Whenever you’re evaluating a pro forma, keep this 7-Point Checklist in mind:

1. Here’s Why Investors Should Use It

Using this framework gives you a repeatable method to pressure-test any pro forma before committing your hard-earned capital. By understanding these seven key areas, you transition from passively accepting projected returns to actively verifying if those returns are grounded in realistic facts.

2. Here’s How the Memphis Deal Illustrates It

We saw examples of how operating expenses, maintenance budgets, and lease terms were handled in the Memphis rebuild above. But there were a few other specific places where these line items stood out when auditing the actual deal sheet:

When examining the backend exit assumptions and tax impacts, the Memphis pro forma highlights these additional factors to evaluate:

• Tax Benefit Timing: Tax savings calculations on this sheet assume straight-line savings, which can overstate the actual tax write-offs a buyer receives year-over-year.
• Compounding Appreciation at Exit: While labeled as 8%, the backend sales numbers actually reflect an 8.7% annual compounding rate over 10 years.
• Selling and Closing Cost Allowances: The pro forma projected a Year 10 sale price of $453,205, but only set aside $15,396 (about 3.4%) for selling, holding, and closing costs. Since standard real estate agent commissions alone typically run 5–6%, a supportable benchmark for total exit costs is 10%.

None of these items automatically make a deal good or bad.

They simply remind us that a rental-property deal should never be judged by the headline numbers alone.

NOT YOUR AVERAGE INSIGHT: Do Not Trade Dollars for Pennies

👉 The Real Estate Strategy That Creates “Property Babies”

If your primary investment goal is to maximize cash flow today, a higher-yielding market like Memphis may look like the obvious choice. In this example, Memphis produces about $457 per month in net rental income from day one, compared with roughly $200 per month in Jacksonville.

But it’s worth asking: How much does that extra $250 or so per month actually change your life?

For most rental property investors, probably not very much. You may use it to cover a bill, but more likely it accumulates in an account and eventually helps pay for a repair, a vacancy, or a tenant turnover. That cash flow is valuable—it creates stability and helps the property support itself—but by itself, an extra few hundred dollars per month is unlikely to materially change your financial future.

The real wealth-building power of rental property investing tends to show up over time.

That’s where the Jacksonville example becomes so compelling. By accepting lower cash flow today, the investor is projected to generate approximately $57,000 more wealth over a 10-year hold. That additional equity can become a meaningful financial asset—capital that could eventually be accessed to help purchase another rental property, reduce debt, create additional income, or fund other major financial goals.

That’s how rental property investing can become life-changing. Cash flow helps you hold the investment. Time and equity growth are what can transform your financial future.

The goal isn’t necessarily to own the rental property that pays you the most next month. It’s to own the rental property that puts you in the strongest financial position 10, 20, or 30 years from now.

Make sure you evaluate every deal sheet with honest math, align it with your actual strategy, and play the long game.

Just remember… Don’t Be Average.
Gregg Cohen
Co-Founder, JWB Real Estate Capital