FirstService Residential

I live at The Carlton at Oak Landing in Jacksonville, FL. The property manager is Jennifer Salazar. I have contacted her and the buyer has tried to contact SEVERAL times today to have her provide us with necessary documents to the buyer to sell my condo. She is resistant to supply me or the buyer with any information or forms in order to proceed with this process. She emailed me and the buyer that she is "NOT REQUIRED AND NOT WILLING" to provide us with our requests. So who in First service will help us? Do I need to hire an attorney? Please! It's an easy solution. This is not a multimillion-dollar transaction and I am truly puzzled as to why First Service is SO reluctant to assist with this!