I know there have been similar posts to this one, but haven't found anything that quite answers my question - apologies if this is a repost.

I'm planning to kick off a self-funded, partnered search, eventually intending to raise capital from investors for one or multiple acquisitions. I know eventually I'll need more formal legal advice, but wondering whether this is necessary before having a specific deal and capital need lined up. Is it safe to start a simple LLC to push search expenses through, and deal with the legal structure of the acquisition when the time comes, or do I risk closing options off to myself preemptively?