Unfortunately, It's not a real estate question.. its a legal question and the people who.are answering questions on this site are not licensed attorneys and cannot answer legal questions
You can call down to the wyandotte county courthouse or an attorney and they can help advise you.
First, I would delete this post, in case the family happens across it. Next, time with an attorney would be well spent. It's not uncommon to get a free initial consultation to explain your situation and get their perspective. They could then advise you as to either the process of filing the lien or alternative solutions you may have available to you.
Get to an attorney's office as soon as possible, in these situations time is critical.