Buying a Dental Practice? What You Need to Know About Leases

Mid-America’s most trusted dental practice valuation and sales

If you’re buying a dental practice in the St. Louis area—or anywhere else—you’ll need a lease from the building owner (your landlord). And here’s the truth: almost everything in a standard lease benefits the landlord.

Some landlords are easy to work with. Many are not. Over the years, we’ve found that the “difficult” ones tend to dominate the landscape.

That doesn’t mean you’re powerless, but it does mean you need to know what you’re signing. Here are the key areas to pay attention to:

1. Term of Lease

Your banker will want a long enough lease to protect their financing, and you’ll want stability since relocating a dental office is extremely expensive. Look for a solid initial term plus options to renew.

2. Rent Increases

How and when rent goes up matters. In most leases, increases are tied to the cost of living or another index. Have your accountant or attorney review the formula to ensure it’s reasonable.

3. NET, Double NET, or Triple NET?

  • NET = you pay base rent + property taxes

  • NET NET = base rent + taxes + insurance

  • NET NET NET (Triple Net) = base rent + taxes + insurance + maintenance

Know exactly what you’ll be responsible for and when payments are due.

4. Utilities & Maintenance

  • Some leases include certain utilities (like water), but many do not.

  • If you have your own HVAC unit, you’ll likely be responsible for maintenance, repairs, and even replacement. Factor that cost in.

5. Insurance Requirements

Most leases require you to carry liability insurance. Confirm the amount and make sure it’s practical.

6. Termination Clauses (Death or Disability)

Few landlords will include this, but it’s worth negotiating. Ideally, you want a clause that allows you—or your estate—to exit the lease in these situations, even if it requires a termination penalty.

7. Assignability of Lease

When it comes time to sell your practice, you’ll need the ability to assign the lease to a buyer. The lease should require landlord approval but state that such approval cannot be unreasonably withheld. This phrase is crucial and not always included.

8. Damage or Destruction of the Building

If the building is destroyed (fire, storm, etc.), how long does the landlord have to rebuild? Many leases allow 6 months or more before they have to decide. For a dental office, that’s far too long. Negotiate a shorter timeframe and secure business interruption insurance to protect yourself.

Bottom Line

Leases are dense, landlord-friendly documents—but they can determine the success or failure of your practice. Go in with your eyes open, know where you can negotiate, and protect your long-term investment.

We’ve been helping dentists navigate these lease issues for more than 40 years. If you’re considering buying or selling a dental practice, let us guide you through the process.

– Bill Otten & Kim Rey

Confident female dentist in white coat and blue gloves representing dental professionals supported by Otten-Rey Dental Sales.
What Clients Say

Dentist Testimonials

Kim with Otten-Rey Dental Sales truly made what I thought would be a stressful process extremely easy and painless. From our first meeting all the way until closing, Kim was always reliably there for me through out the process. I trusted her system and it was simple and seamless. I would definitely choose Kim again for my transition if l had to do it all over again.

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Glenn R. Edwards DMD

When I decided to buy a dental practice, I quickly learned that practice brokers represent the seller. As a buyer, that posed some challenges. Of all the brokers I worked with in St. Louis, Kim was the only one who managed to make me feel that she was actively trying to find a practice for me to buy. Not only did she help me find a practice I loved, but she still represented her seller well and was fair throughout the entire process. Because of her, I am now the owner of a great dental practice that I love and I truly believe she made that happen for me. Thanks Kim.

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Dr. Victoria Daugherty

Thank you both, Kim & Bill. This has been a great adventure. All is going great with the merger of Dr. Berger’s practice. Overall, I would say it is a great success. And I couldn’t have done it without both of you.

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Dr. Christy Hager

I felt my practice purchase went smoothly and efficiently with the help of Otten-Rey Dental Sales. As a buyer, I felt comfortable with the fair appraisal that Otten-Rey put on the practice and both Kim and Bill were very accommodating getting any requested info to help me do my due diligence…Otten-Rey is known in the St. Louis Dental community for being easy to work with and I strongly recommend either buyers or sellers use them in the process of your dental transition. Having their expertise, experience and organization really made things a lot less stressful.

review from happy client Dr Jen Wheeler
Dr. Jennifer Wheeler Chesterfield, MO practice

Kim’s understanding of all aspects of a transition was invaluable. She has comprehensive knowledge of both the financial and clinical aspects of a dental office. She also provided the guidance and understanding of the legal aspects necessary to close the transaction. Thanks Kim!

review from happy client Dan Twillman
Dan Twillman DMD

Kim Rey was my broker in representing me when I sold my pediatric dentistry practice. From my standpoint, Kim brought a great amount of stability to the whole process. I appreciate her insight and her levelheaded guidance on what my expectations should be, what the normal accepted practice and standards are when dealing with a buyer. The process was longer than I anticipated, but Kim kept me focused and on the right track until the transaction was completed. Throughout the process, she always made me feel like I could rely on her and that in turn gave me a great deal of comfort. I would highly recommend Kim Rey to anyone looking to buy or sell a dental practice.

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Andrew M. Kim DMD

Several of my friends used Kim and Bill to sell their practices and had highly recommended them. I was pleased with the thorough process of valuation and the explanation of the report. They provided frequent updates and the guide for printing the necessary reports for the valuation. They found a buyer that fit our needs. I would recommend them to the other dental offices needing the same services.

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Gerald Dragich DMD