Can anyone help create contractor and client invoicing with conditions?

We're looking for someone to create an invoicing form that contractors can fill out for sales, based on set conditions send invoice to their clients and a copy to our agency?

We have not time to do this ourselves

Looking for pricing and options

We can not create form for you, but we can assist you if you have any issues during form creation. 

You can search for invoice forms, in the Form Templates page:

https://www.jotform.com/form-templates/search/invoice 

More about conditional logic you can find inside of this guides:

http://www.jotform.com/help/57-Smart-Forms-Using-Conditional-Logic 

http://www.jotform.com/help/167-How-to-send-to-a-specific-email-address-based-on-a-selection 

You can also create form from scratch and integrate it to FreshBooks. A great app for creating great looking invoices. http://www.jotform.com/blog/58-Create-Invoices-from-Forms-Using-Freshbooks-Integration 

If you want that someone build form for you, I would suggest you to hire freelancer on UpWork.

Hope this will help. Let us know if you need further assistance.