If it's a formal equity seed round, there is very likely to be diligence. The requests are often not that different than the Series A list in original post. B

If it's a formal equity seed round, there is very likely to be diligence. The requests are often not that different than the Series A list in original post. But, generally speaking, a seed stage company has significantly less documentation to provide. So, most of the categories of diligence items end up being inapplicable. In a note/SAFE round, it is much less likely that there will be diligence.