I have my eye on the following itin. I have *A Silver (which I only mention for completeness since it gets me nothing of interest).

[outbound]
UA Y, ORD-LAX
BR J, LAX-TPE-SIN (depart 1:55 am the next morning)

[inbound]
BR J, SIN-TPE-LAX
UA Y, LAX-ORD

1. Can I use the SQ SilverKris lounge in SIN, on the inbound? *A lounge finder says yes, but SQ website only mentions their own pax.

2. Can I use the *A lounge in LAX, on the inbound? *A lounge access policy says "Customer must be departing from the local airport in International Business Class", which implies NO. Is that correct? If so, OneWorld/AA policy is better where you can access domestic lounge when connecting from int'l J.

3. Can I use the UA lounge in ORD on the outbound?

4. On the outbound, LAX *A lounge isn't going to give me grief with the int'l J flight departing past midnight (1:55 am), right?