Received a response/threat from one of my mailers

[Larry Murray]

I am a new wholesaler in Texas and sent out my first direct mail campaign last week.  Today I received a phone call from an angry lady in California who received one of my letters and said that I am defrauding people and that what I am doing is illegal and that she is going to report me to the Texas Attorney General's Office.  

I obtained my mailing list from the county directly and my letter states that I am interested in purchasing her property.  Is this something I need to be worried about?

Thank you,

Larry