Tenant just recently moved in. She sent email through listing agent about issue with ants in the yard. I'm managed property myself, so I tried to contact her via email, text, phone to greet her and informed her I want to meet her to discuss. But she said she thought the property was managed by a company and not an owner. I have informed her in writing that in the lease agreement, there is no property management company is mentioned. After her first email, she no longer responses to any email/text/call. What should I do?