The only other modes of transportation we can suggest are Ubers.
No. You will have to either call an Uber or taxi service. If you're driving a vehicle to the venue then parking will be available.
Temperatures are usually around mid to high 70s during the day to low 60s at night. June is also considered a rainy month for Ohio.
Comfortable cocktail attire. Ladies might want to rethink high heels and consider block heels or wedges.
For the most part, yes. The outdoor area may be a bit uneven.