Companies feel changes in commercial real estate, especially in the office world, in slow-motion. Deals can take months to complete, while office leases often can run up to 10 years, resulting in typically steady income for property owners through the ebbs and flows of the broader economy.

As a result, epochal shifts stemming from the work-from-home revolution during the pandemic can take quite a while to work out. Some of the largest office locales like San Francisco are already seeing record vacancy, but we're still in the early stages of the shift, with the number of distressed properties still relatively low.

In order to fully understand what's happening, it can be helpful to look at some of the largest leases in major buildings across the country. Not only do they have their own economic impact, but the decisions of the biggest renters in the country may also influence competitors who often follow their lead and — in general — the value of office properties overall.

Landlords usually purchase large office buildings with large loans, so naturally, the income of the property is of great interest to whoever holds the debt. In this case, the debt on these buildings has been securitized, or bundled into commercial mortgage-backed securities that are common investments of mutual funds popular with everyday investors and offered in 401k retirement plans. 

Trepp, a real-estate-debt-data powerhouse, provided Insider with a list of nine major upcoming lease expirations that they're watching to understand the impact of remote work and the changing face of the office. 

The list was provided with commentary from Manus Clancy, Trepp's senior managing director of applied data, research, and pricing.

Check out the list below.

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