One hack to find a lot of these SPV as a service filings is to search "a series of". They do have a formulaic filing process, but from looking into it, adding "fund I" is not part of that. It usually does indicate that its the first syndicate of the parent promoter, but they don't do it for every filing. Here is a search query where you can kind of see the variance: https://www.sec.gov/edgar/search/#/q=a%2520series%2520of&cat...