Why am I seeing a low voltage when the switch is open?
I think that your are seen this small voltage because Q2 'open' model is a high value resistance but not a infinite value. So, there will be a voltage divider in the loop V1, Q2, R1, R2. Can you check the Q2 model?

.
.
.
edited to add that, by approximation, v_mesuared = 14V*7.87k/1M ~=0.11 V 

So, we can have a guess on the open model of Q2 (~1 M ohm).