I googled her, I looked on Zillow and I looked on REALTOR, I do not see Barbara Murray in Florida as a REALTOR. I would recommend to interview a few LOCAL REALTORS to determine a good fit. Fast Expert can help....
If you are hoping to buy a house, you likely have a budget in mind. Hopefully, that budget includes fees that come with the process, not just the purchase price. The good news for buyers is that they aren't directly responsible for paying their agent. Agent fees usually fall on the seller.