Yes OxLeads support 24*7. You can do whatever you want.
Yes You can use it.
You Can post any classified ads in oxleads.com just click post free ad and register then continue your post
Yes you can sell and buy in oxleads
Yes you can post
Yes Each user will have there own page and dashboard . And its compatible with Wocommerce.
Yes This theme is Google AdSense supported.Even you can use Image ads if you don't want to use Google AdSense.
Yes OXLEADS come's with complete Messages solution. You just need to go to your dashboard to see all conversations
Yes From theme options you can select add will be approved automatically or on approval
All Registered user can post free ads, And IF user want to post featured ads then user must need to purchase a plan.
Yes from back end you can change currency options