I don't know your definition of balanced, but below is what I ran as a hireling. I did not have any "dump" stats, as I don't think any were necessary.
Hearth Orlan Rogue
Might 17
Con 10
Dex 19
Per 12
Int 10
Res 10
I used Rapiers / Daggers for increased accuracy, but you could certainly use Sabres / Stilettos as well and sub in Weapon Focus: Ruffian. Order of abilities / talents is from memory and may not be 100% correct.
I used this hireling on Hard difficulty, usually within 2-3 meters of a Paladin.
Lvl1 Crippling Strike
Lvl2 Weapon Focus: Noble
Lvl3 Dirty Fighting
Lvl4 Vicious Fighting
Lvl5 Reckless Assault
Lvl6 Two Weapon Style
Lvl7 Coordinated Positioning
Lvl8 Vulnerable Attack
Lvl9 Deathblows
Lvl10 Savage Attack
Lvl11 Deep Wounds
vl12 Shadowing Beyond
Edited for clarity of ability / talent choices