The LSAT is not scored using the same method as the SAT or ACT. You are never punished for guessing. When I notice I am low on time with unanswered question, I fill them in and then try to work on as many as I can before time is up.
... you had accommodations on the ACT which means by default you ... prior administration of the SAT I, SAT II, ACT, GED, GRE, GMAT, DAT ... what you received on the ACT than you will need to ...