*A Gold Lounge Access??
 

I have *A Gold and will be traveling TLV-EWR-PDX.

Will i have access to the presidents club in EWR? Or will i need to find a non-CO/UA/US lounge to use

Any tips for a non-CO/UA/US lounge to use?

If your *Gold is with a non-US carrier, you can access any lounge, any time.
If it is with a US carrier, but your domestic flight is in conjunction with an international
flight ( as your TLV-EWR appears to be), you will get access to any lounge in EWR.

Yes, my *Gold is from United

I was wondering what "when travelling in conjunction with a Star Alliance international flight" meant.

Same ticket, same day, same airport?

If i fly SEA-IAD-ROC-EWR-TLV can i access the lounge in all airports?

It means "same day". *A lounges are departure lounges, except for those that are specified as arrivals. Your *G status will get you access to the lounges at SEA, IAD and EWR. I don't think there's a lounge at ROC.

What about the other direction

TLV-EWR-PDX all on CO

As a UA *Gold, can i access the lounge in EWR?

If you're on an international ticket you should be able to use the PCs at EWR.