How would I do that - send them a formal invoice or request, or can it be less formal like a simple email? 

How many phone calls and emails to track the new parts that were needed yesterday?

Then send a follow up email outlining what you are proposing.

Now they’ve said they are holding for an Indefinite amount of time and since then they’ve stopped responding to me and email once or twice a year with corporate speak that says nothing useful. 

I would say this was the least organized BPCon (no cevent App, poor email distribution, my workshop that was $300 had about 20% attendance rate) I have been to, with the worse room problems (both ac and hot water problems in my room), and the hurricane issue (they cancelled the meal but many of the restaurants required reservations that we did not make because we were expecting the meal), and in my opinion worse keynote speakers even when one was a repeat (I like David Greene keynotes, but …), I enjoyed this BPCon more than the others I attended. 

I have to email Launch on a daily basis to ask them to enable the batches.

I sent an email to our lender to ask if it makes a difference in getting financing and expect I'll hear back Monday.

That's why I was leaning to foreclosures so I can do full cash (heloc) purchase.The other part I need to get more fluent in is how to document all of those action items in the LLC to keep the corporate veil. 

This is the unwavering legal document that says who has do what, when they have to do it, and how they have to do it. 

@Matt Durik was the 30-day you gave them a legal state required document?