I don't know which one, but I think I remember reading that only in the one of the two Jain denominations those professions are barred. The other one has 6 permitted professions- asi (sword) soldiers, police, security; masi (ink) communications, administration; krsi agriculture; vanijya trade; silpa (manual labor) medicine, carpentry, construction, artisanship in general and similar; vidya teaching- and they are restricted only by other precepts, e.g. trading in slaves or animals for food, or working as a soldier-mercenary in conquering armies- is not allowed because it breaks the ahimsa vow, trade in indoxicants is not allowed because it breaks the bhogaopabhoga vow, etc.
As far as aparigraha and wealth is concerned, aparigraha means primarily non-possivness of the fourteen moods (mithyatva- false belief, krodha- anger, mana- pride, selfishness, maya- deceitfulness, lobha- greed, hasya- laugful contempt, rati- pleasure, arat- suffering, bhaya- fear, soka- sorrow, jugupsa- disgust, pumveda- male sex-urge, striveda- female sex-urge, napumsakaveda- effeminate sex-urge) ,and secondary, for a layperson, to set a limits to possession of Kshetra-Vastu Land and Houses, Hiranya-Suvarna Silver and Gold, Dhana-Dhanya Cattle and Corn, Dasi-Dasa Female and Male servants, and Kupya-Bhanda Clothes and Furniture.
Also, concerning Jain laypeople and moksha, Jainism has somemething similar to the Hindu ashrama progression, only with 14 stages, and the idea is that a layperson should progressively become more and more like a monk as he grows older.