My daughter and future son-in-law have undergone pancha samskaram and bharanyasam; can we conduct the wedding at other religious halls like Jain Hall, etc.?

It is better to conduct them at a divine place or kshetram.
These days not everyone gets the opportunity to conduct them at holy places. The rent we pay to conduct at such halls can be taken as kraya suddhi.
One can perform punyahavachanam before conducting other rituals.