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Topic basically sums it up, I'm finishing up undergrad and am wondering if it would be worth it to try and work/volunteer at a law firm for the sole purpose of a resume boost for 1L summer. My past jobs were at a moving company and as a baseball umpire but if law firms don't really care about undergrad work experience ill probably just relax.
Thanks in advance,

Depends on how long you're talking about doing the work. If you're planning on doing it for a year or two, then it's relevant work experience. If you just plan on doing it for summer between UG and law school then it's really only useful insofar as it helps cement and substantiate replies that you're going to give in interviews.

Probably.