Local Japanese accountant to validate invoice for Japanese customers

We are a software company that supply an app, SpeedInvoice, that you can download from Apple or Google. Please have a look at the app. I need you to validate that we meet Japanese invoice requirements. The process will be that I will send you a Japanese invoice, you will review that terms used and information provided on our invoice meets the standard Japanese invoicing requirements. We will also need to know if there are any special scenarios that we need comply with in Japanese tax law. We have done this before with other countries and it is a very quick process. It will take 30 minutes to an hour of your time. Please do not bid unless you are a Japanese accountant.