3 PQE associate @ mid tier firms should comfortably be drawing $7000-$7,500 / pm.

I prefer to use "mid tier" rather than "mid sized", since not all mid tier firms are mid sized and vice versa - see ://sbr.com.sg/professional-serviceslegal/exclusive/singapores-25-largest-law-firms-in-2017

Mid tier firms that have tie-ups in some form or another with international firms may see a premium in salary above other comparable firms of the same tier, say upwards of $8,000 /pm.