Thanks for the post!
We had a similar question about four or five years ago... You may review it here:
http://www.religiousforums.com/threads/bahai-vs-buddhism-taoism-and-jainism.100862/
I reviewed our Baha'i Library Forum and didn't see much of a change since the last time I reviewed it.
Jainism has a lot of good teachings and practices... I've met with Jains where I live and studied some of their books.
While Baha'is accept the Buddha as a Manifestation of God... the Writings are silent with regard to Mahavira.
Jains accept the reality of the soul or Atman and practice Ahimsa. Baha'is also acknowledge the reality of the soul and believe we should be kind to all creatures.
They are generally strict vegetarians which I think is commendable. Baha'is also believe vegetarianism will likely be adopted in the future but there is no restriction for us as to diet.
Jains accept a series of Jinas similar to Tirthankaras in Buddhism and we Baha'is accept that there are many Manifestations of God and Prophets ... many of Whom we do not have records.
Jains believe in long cycles of time and we Baha'is also acknowledge vast periods of time:
See:
http://bahai-library.com/momen_encyclopedia_ages_cycles
Some of the differences... Baha'is have no monastic orders; Baha'is believe in God as Creator; Baha'is do not believe in reincarnation.