1) 0.5.12a
2) Windows 8.1
3) Found a cloning bug.
4) Sell everyone, goto Gorn's 2nd main quest, encounter Hade, defeat Garthor and return to mansion, the servants I sold got cloned within the slaver's guild I sold them to.
5) N/A
Update: got a noble from umbra, already branded, set her residence to communal, set head girl to patronage, improved noble's mental stats to 100 for courage, confidence and wit, cast Domination to lower obedience. Next day, increase in obedience: 9->30. next day: 30->??. Next day: ??->80ish.
It's safe to assume that the Authority trait doesn't stack as no 50+ increase in obedience happens. Unless daily obedience increase is capped. Which I'm pretty sure it isn't.
1) 0.5.12a (as far as I recall)
2) Windows 8.1
3) Ending is bugged, got 10 identical characters, each with same name, stats, traits, portraits etc.
4) I think that I pressed "1" to move between events. Maybe causing the ending script to go multiple times, giving me said character multiple times? It did repeat each scene multiple times.
5) Time to make each of them obedient and abuse their "Authority" trait, have everyone be obedient forever. Unless that doesn't work.
Are you talking about mental stats or the core stats? Mental stats are increased by going to the character window, selecting "Learn Skill" and increasing mental skills at the cost of learning points. No learning points? Well put them in a library or teach them via interaction.
To increase their core stats, goto their character window and look right of their character portrait. There should be plus buttons. No plus buttons? You either lack skill points or their stats are already at max. No skill points? Level them up! How? Get their EXP to 100/100 and then talk to them. Select the 1st dialogue option to find out what they need to level up. Can be:
Grade them up
Have them learn a Speciality
Give them items (press the 1st button again to proceed)
Give them a vacation (press the 1st button again to proceed)
Have them win in a fight