Finding free audiobooks of specific titles can be like tracking down a rare edition in a used bookstore. 'The Ties That Bind' is part of Ashley Farley's Sweeney Sisters series, I believe. Honestly, your best chance is through a library. Services like Libby or Hoopla, which you access with a free library card, are the most legitimate way. I borrowed it that way a while back. The selection varies wildly by library system, though. Mine had it, but my friend's didn't.
Fully free commercial platforms like Audible's free trial might have it, but that's a one-time thing. I wouldn't trust those random 'free audiobook' websites that pop up in searches. They often have dubious audio quality, mislabeled files, or are just plain piracy. If the author and narrator aren't getting paid, it feels wrong, especially for smaller series like this. Sometimes, checking if the eBook has a 'Read Aloud' feature on Kindle Unlimited is a workaround, but it's not the same as a professional audiobook.
In the end, a library app is the most consistent and ethical route. If it's not there, a Scribd trial might be worth it, but I think they moved to a credit system. I just remember the frustration of hunting for a specific book and finding only pieces.