Forgotten Realms Sossal lore help?

The Realms are so big!

How would Waterdeep City Watch deal with dangerous, maybe magical threats?

Looking for some info bout Castle Valjevo in Phlan, why is it called so?

Where would one find temples for Eilistraee post-Spellplague?

Does Qilue Veladorn have a Tomb in Waterdeep?