The term "mechanic's lien" refers to a claim for improvements made to real estate. It does not have anythng to do with automobile repair. The section of the Florida Statutes that you cited does refer to automobiles. According to that statute, if you send the notice in the proper manner, you can sell the car unless the owner files a suit objecting to the sale. If you are unsure of your rights or of the proper procedure, you should consult an experienced business lawyer in your area.
Disclaimer: This answer is provided for informational purposes only, does not constitute legal advice, and does not create an attorney-client relationship. Actual legal advice can only be provided after completing a comprehensive consultation in which all of the relevant facts are discussed and reviewed.
In Florida, the lien of a person or entity who performs work on a motor vehicle is strictly possessory. If you let the vehicle go, you have no lien. Hire a lawyer and make sure that you comply with the law before you sell the vehicle to satisfy your lien.
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