You can most likely find dock space to pull up and drop people off. Someone might not like it. I personally would not bother. Just hover the boat and have someone run them in with the dinghy. I have done it many times. With a powercat you can overnight at Great Harbor on Peter. It’s 4 miles so 15 minutes at 15 knots 20 minutes at 12 knots. You will have enough light. Leave at 6:15 and they will be at the ferry dock before 7 with no issues. Brandywine Bay is not very scenic and noisy. You would save 7 or 8 minutes staying there. It’s just over a quarter of a mile walk from the dingy dock to the ferry dock.