The 5 Investor Mistakes That Quietly Kill Rental Profits

Origami Property Management • March 23, 2025

If you’re an investor, you already know real estate has the power to build long-term wealth. But here’s the truth: buying the property is the easy part . Keeping it profitable? That’s where most investors struggle.

At Origami Property Management, we work with investors ranging from first-timers to seasoned landlords, and we’ve seen the same mistakes repeated time and time again. The good news? Avoiding them can save you thousands and help your portfolio scale the right way.

Suburban aerial photo
Photo by Breno Assis on  Unsplash

1. Underestimating the Cost of Turnover

Most landlords think a late rent payment is the worst-case scenario. It’s not. Vacancy is.

Every day your unit sits empty, you’re bleeding cash through utilities, taxes, insurance, and loan payments. And that’s not even counting the real turnover costs:

  • Deep cleaning
  • Cosmetic repairs
  • Marketing & photography
  • Leasing fees
  • Time off work to show the unit

All of that adds up. Fast.

Investor Insight: Focus on tenant retention as aggressively as you focus on tenant screening. Renewals are cheaper than replacements.

2. Treating Property Management Like a Side Hustle

Real estate is a business. And every business needs systems.

When investors try to manage properties on the side — on top of a full-time job, family life, and everything else — things get missed:

  • Lease compliance
  • Vendor coordination
  • Bookkeeping
  • Legal changes

Eventually, that “passive income” turns into a full-time stressor.

Investor Insight: Either invest in proper systems (tech, processes, bookkeeping), or partner with a property manager who already has them in place.

3. Deferring Maintenance Until It’s a Crisis

That tiny leak under the sink? It’s not tiny anymore when it’s caused mold damage, a ruined cabinet, and a very unhappy tenant.

Deferred maintenance is expensive. But more importantly, it breaks trust with tenants and increases turnover.

Investor Insight: Budget at least 10–15% of your monthly rent for maintenance. Be proactive with seasonal inspections. Your future self will thank you.

4. Choosing the Cheapest Vendors

Your property is a six-figure asset. Don’t treat it like a DIY weekend project.

Cutting corners on vendors can lead to botched repairs, safety hazards, and legal liability. A $150 HVAC repair done wrong can turn into a $5,000 replacement — or worse, a lawsuit.

Investor Insight: Build relationships with licensed, insured vendors. Better yet, work with a property manager who already has a vetted vendor network.

5. Focusing on Rent Price Instead of Long-Term ROI

A common rookie mistake: pricing a unit at the absolute max, thinking it guarantees the best return.

In reality, pushing rent too high often results in:

  • Longer vacancies
  • Pickier tenants
  • Higher turnover
  • More wear and tear

It’s not about how much rent you ask , it’s about how much income you  keep.

Investor Insight: A slightly lower rent with a long-term, stable tenant almost always outperforms a short-term, high-paying tenant.

Final Thoughts

Managing rentals is simple in theory. But in practice, the details make or break your returns.

Avoiding these five mistakes won’t just save you money — it will position your portfolio for long-term, sustainable growth.

At Origami Property Management, we help investors think like business owners, with smart systems, reliable support, and a deep understanding of what makes a property truly perform.

Follow us for more real-world strategies, behind-the-scenes insights, and investor-first thinking.

written by Robert Trombetta, Founder of Origami Property Management


The 5 Investor Mistakes That Quietly Kill Rental Profits was originally published in The Fold by Origami Property Management on Medium, where people are continuing the conversation by highlighting and responding to this story.

The Fold by Origami Property Management

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