Here, you can create 'mock' documents that in configurations can be set up to not manually upload into your brokerage's interface/software.

After exchanging emails, I was told that they failed to execute the payment agreement document, therefore, the money is due paid in full now..  

Submitting offers, getting beat, or having a listing and seeing all the different offer that come in as well as the timing of them will give you an accurate picture of the market for that area.

Make sure any documents deal with the security deposit.

Unless you are able to get closing documents from this sale, it would be nearly impossible to see the exact structure of this deal.

I’ve been submitting multiple offers on properties in my market .

However, once I have an application submitted, I disclose that to future interested parties so they know there's competition and aren't wasting their time.If you deny them because they don't meet your qualifications, then you should send them the letter.

With the Company documents, your passport, and EIN you can open a bank in person in the US. 

What documents, due diligence do I need to take?

You just have to submit a few forms to NJ state and they waive the class.