Why Social Media Lies to You About Short-Term Rentals
The “30 Unit” Fantasy vs. Reality
Scroll Instagram for five minutes and you’ll see it.
Some guy in front of a pool in Scottsdale.
Another one standing on a Nashville rooftop.
“Just buy your first Airbnb. Then do it again. Then again. Scale to 30.”
It sounds clean. Simple. Mechanical.
But here’s the part nobody wants to say:
“For most people, owning one STR today is hard. Owning two is harder. Owning thirty is nearly impossible without real infrastructure.” — Jack Costigan
Social media has turned short-term rental investing into a highlight reel. The philosophy of asset ownership gets discussed endlessly — mindset, freedom, passive income.
What rarely gets discussed is how this actually works in practice.
And that’s where most people get burned.
The Capital Lie: “Just Use a DSCR Loan”
Let’s start with financing.
Most short-term rentals today are financed using DSCR loans. That sounds simple online. What influencers don’t explain is what that really means.
• 20–25% down
• Six months of reserves (sometimes more)
• Strong liquidity
• Clean credit
• Proven rental performance
This isn’t FHA with 3.5% down.
It’s real money.
On a $1,000,000 STR in Nashville, you’re talking:
• $250,000 down
• $40,000–$80,000 in furnishings
• $20,000–$50,000 in reserves
• Closing costs
That’s $350,000+ cash before your first guest checks in.
And that’s for one property.
“When someone online says ‘just buy another STR,’ what they’re skipping over is the fact that you need hundreds of thousands of dollars in cash to keep doing this.” — Jack Costigan
This is the first place most scaling dreams die.
Underwriting Is Harder Now — Not Easier
The “buy, refinance, repeat” strategy worked differently in 2020–2021.
Prices were lower.
Rates were lower.
Occupancy was booming.
Nightly rates were surging.
Today?
Rates are higher.
Purchase prices are higher.
AirDNA projections are flatter.
Competition is heavier.
Margin for error is thin.
A deal that misses by 10% can completely wipe out your return.
That’s why serious underwriting matters more now than ever.
At The Costigan Group, we spend hours inside spreadsheets before we ever show a property. Every client gets conservative underwriting, stress-tested scenarios, and real-world projections based on seasonality, not fantasy.
You can learn more about how we approach Nashville short-term rental investing on our dedicated STR advisory page:
👉 https://jackcostiganrealestate.com/short-term-rental-nashville
Scaling bad underwriting just scales risk.
STR Income Is Not Smooth
Another lie social media tells:
“STR cash flow is consistent.”
It’s not.
STR income is volatile.
• Summer spikes
• Shoulder seasons dip
• Event-driven surges
• Unexpected maintenance
• Regulatory shifts
• Algorithm changes
You don’t get a fixed rent check on the first of the month.
You get bookings — if your listing is performing.
“Short-term rental income isn’t smooth month to month. Anyone telling you otherwise hasn’t owned one long enough.” — Jack Costigan
And when you stack multiple properties, volatility compounds.
One bad review.
One cleaner mistake.
One maintenance delay.
Occupancy drops.
Revenue dips.
Mortgage stays the same.
This is business income — not passive income.
One STR Is a Business. Five Is a Job.
Here’s the operational reality nobody glamorizes.
One STR:
You’re running a business.
Five STRs:
You now have a second job.
Ten STRs:
You need systems, staff, or you break.
Guest communication.
Dynamic pricing.
Cleaners.
Laundry.
Restocking.
Maintenance coordination.
Review management.
Vendor oversight.
Insurance.
Accounting.
That doesn’t scale casually.
“Five STRs isn’t passive. It’s a job. Ten STRs requires a real operation.” — Jack Costigan
Most influencers don’t show you the backend:
• Virtual assistants
• Revenue managers
• Dedicated cleaning teams
• Full-time maintenance staff
• CRM systems
• Bookkeeping support
They’re not doing this at night after their W-2.
The Quality Decline Problem
Here’s what actually kills large portfolios.
Quality erosion.
As you scale:
• You’re farther from the asset.
• You rely on more vendors.
• Small issues slip.
• Reviews soften.
• Ranking drops.
• Occupancy follows.
When quality drops, revenue follows.
It’s math.
And reviews are unforgiving.
A 4.9 → 4.7 drop materially impacts bookings.
That’s the part social media never shows.
They show acquisition.
They don’t show reputation management.
The Truth About the “30 Unit” Operators
Most large-scale STR owners fall into one of three categories:
They bought years ago at radically different pricing.
They use outside capital or partnerships.
They operate full infrastructure teams.
They are not:
• Buying with 5% down.
• Running everything themselves.
• Scaling casually.
“The people flexing thirty units aren’t doing this on nights and weekends with a spreadsheet.” — Jack Costigan
They are running companies.
Which is fine — if that’s your goal.
But most people don’t want to build a hospitality company.
They want financial leverage.
Those are two very different things.
Why 1–3 Great STRs Beat 30 Average Ones
Here’s the strategic shift.
For most high-income professionals, athletes, physicians, and business owners we work with, the optimal strategy is:
• Own one to three exceptional assets.
• Buy right.
• Finance correctly.
• Protect reviews.
• Protect occupancy.
• Protect margins.
That approach wins.
When you own a few strong performers:
• You maintain control.
• You protect quality.
• You protect reputation.
• You protect underwriting assumptions.
“For most people, one to three STRs done correctly beats chasing thirty on paper every time.” — Jack Costigan
Scaling prematurely introduces fragility.
And fragile portfolios break first when markets tighten.
The Infrastructure Conversation
If you do want to scale beyond three properties, here’s what that actually requires:
• Dedicated revenue management
• Cleaner redundancy
• Maintenance reserves
• Vendor accountability
• Bookkeeping systems
• Tax planning strategy
• Capital planning
You are no longer an investor.
You’re an operator.
And that requires intentional build-out.
At The Costigan Group, we advise clients on both models — boutique portfolio vs. operational scale — but the strategy has to match capital, bandwidth, and goals.
Anything else is gambling.
The Real Takeaway
The social media version of STR investing is simple.
The real version is nuanced.
It’s capital-intensive.
It’s management-heavy.
It’s volatile.
It’s reputation-driven.
It’s underwriting-sensitive.
And it rewards discipline — not hype.
If your goal is sustainable wealth, not Instagram optics, then the smarter play is patience and precision.
Get one right.
Then maybe a second.
Then maybe a third.
Only scale when systems support it.
“Scale without infrastructure doesn’t create freedom. It creates stress.” — Jack Costigan
Build a Portfolio, Not a Fantasy
The short-term rental space is still powerful.
Nashville remains one of the strongest long-term hospitality markets in the country. Demand is real. Tourism is real. Event traffic is real.
But success in this space today requires:
• Serious underwriting
• Real capital
• Operational discipline
• Review protection
• Conservative projections
The era of sloppy deals working automatically is over.
That’s not bad news.
It just means strategy matters more.
If you’re serious about entering the STR space in Nashville — or scaling intelligently — the conversation shouldn’t start with “How do I get to 30 units?”
It should start with:
“How do I get the first one right?”
Because when you protect the first one, everything else becomes optional.
When you chase thirty without structure, everything becomes fragile.
Choose structure.
Choose discipline.
Choose long-term math over short-term ego.
That’s how real portfolios get built.
FAQ Section
Is short-term rental investing still profitable in 2026?
Yes — but only when properly underwritten. Higher rates and pricing require conservative projections and disciplined acquisitions.
How much cash do I need to buy an STR in Nashville?
Most DSCR-financed STR purchases require 20–25% down plus furnishings and reserves. For a $1M property, that can exceed $300K total cash needed.
Can I scale STRs quickly?
Scaling is possible but requires infrastructure. Without systems, quality drops — and revenue follows.
Is owning multiple STRs passive?
One STR is manageable. Five becomes a job. Ten requires a team.
Jack Costigan is a top-producing Realtor® and founder of The Costigan Group at Compass Nashville, specializing in short-term rental, investment, luxury advisory, and residential real estate across Greater Nashville and Middle Tennessee. Known for his data-driven strategy, modern marketing approach, and high-touch client experience, Jack advises homeowners, professionals, and investors on identifying and executing high-performing real estate opportunities.
