I own a business registered in the USA and located in Mexico, my sister has been harrasing my tenants and asking them for rent money, she already collected $2500.?
Unfortunately, cannot answer your question with the information provided. Contact an AVVO qualified attorney to discuss this matter. Most will provide an initial consultation without charge. Make sure you have any and all information regarding yoiur business when you meet with counsel. A US attorney may be able to assist or you may need to contact someone in Mexico.
With all due respect, that isn't enough information to even guess at the issue. How is your sister harassing tenants? Rent on what? What is her relationship with you and the business? Where are these tenants, Mexico? Etc.
Chances are that adding this information to your Avvo question isn't really going to help. It sounds like you have a situation that relates specifically to your circumstances, not a general legal question. Avvo isn't the place to get specific legal advice for your matter, but more a place to ask about general legal principles that may apply to your situation.
Beyond that, if this is happening in Mexico you are going to need an attorney there. Please find someone local to the problem to help you.
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