With commercial tenancies, the answer typically is yes, insurance, taxes, utilities, etc. are shared expenses. But, you would have to look to the terms of your lease and discuss how you are to be billed for these items with your landlord. Commercial tenancies are much more flexible in terms of what and how the burden for expenses like you have mentioned can be shouldered by the tenant.
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Sorry, but the only way to know is to see the lease.
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