In your case, you need to go to the immigration office, but at the same time consult a lawyer to rule out a fatal flaw. I had a visa and real estate lease problem as well. Like you, I was afraid that the outcome wouldn`t be in my favor. I was advised to use the services of a law firm with a good reputation, which deals with estate planning problems as well. They turned to be really trustworthy lawyers who charged me a fixed fee, which we agreed in advance, and I didn`t spend all my money on services. They didn`t fleece me like a sheep, that`s for sure. I can't tell you a certain person, because the specifics of my issue may have been different from yours.
I see that your thread is from four years ago, and I hope you've made progress in resolving your complex visa and real estate lease problem. Legal matters can take time, but it's important to address them properly. If you're still dealing with these issues, considering consulting with an experienced attorney who specializes in immigration and real estate law is a wise move. While the thread is old, legal challenges can persist, and the right legal counsel can provide guidance and help you navigate the complexities of your case. You might want to explore https://federal-lawyer.com/whistleblower-lawyers/sec/ for recommendations or guidance on finding the right attorney. They can offer valuable insights into your specific situation and assist you in seeking a resolution.