I have improperly filed mechanics liens placed on my property in Orlando, Florida. How do i resolve/remove legally?

A contractor submitted 2 separate Claim of Lien on my property beyond the legal time frame of 90 days after doing the work or providing materials. I was never properly notified legally within the 15 days via certified/return receipt mail. The liens are not properly filled out, either leaving necessary spaces blank, or with a N/A placed in them. They are notarized, but I do not know if they are legally notarized because of the blank spaces. Also, I believe a construction person who completes work that requires the proper licensing to complete work on a property is the only one that can place a lien for that type of work on the property if they feel they were not properly compensated, or had some dispute. This person does not have a license of any sort. When the work required proper licensing by law, he sub contracted the work to a proper party. Since he did not list anything for his disputed work or materials/supplies, I do not know what he is claiming, nor the dates of work. Any work that was furnished is well beyond 90 days. What is the most cost effective way to remove these improper liens to clear my title?