I Agree. Street parking is not the best. Pretty crowded usually. Small pay lot within the same block. Open air lot. No parking structure there.

Yes. Tables and at the counter.

Yes

it's probably not, if it was it would say so,, and it's not in any of their signage,, Kosher or not it's the best corn beef and pastrami is Seattle by far

It's a mile from the Convention Center. 308, 309, 522, 312, lots of busses go nearer to there. Use the Mass Transit option on Maps to find the best route for you.