Laws and contracts are one thing people's reliability and character are another. I certainly believe you have a sympathetic situation and you need to document it with letters, photographs and any other documents or evidence you can get to support and back up what has occurred. It sounds like you have a very cold and inconsiderate landlord, but it is difficult for me to give you good legal advise without looking at your commercial lease. Many commercial leases are very pro-landlord when it comes to business interuption for the making of repairs, etc... please review it closely to see what the lease says. it may have a provision requring reasonable notice, etc.. The language will likely be very technical legal language, but it needs to be reviewed. Commercial leases are enforced very strictly according to the written terms, as it is assumed by the law that both parties, as businesses, negotited the terms and reviewed them carefully before agreeing to them. As a result, courts are reluctant to overlook agreed upon provisions in a lease. However, if the lease is silent on these issues, you may have an agrument that the landlord should be responsible for your interuption of business, and you need legal representation. At a minimum, I would advise you to retain an attorney to look at your lease and write to your landlord on your behalf to express your position in a manner that is consistant with your rights. I hope this answers your question, and if you would like to speak with me further, please feel free to contact me.