We're currently working on a very large student union building for a major California university, which is in its final design review phase. Some of the spaces will be fit out by retail tenants, not the Owner. We have always intended to write Tenant Guidelines toward the end of the project to mandate LEED compliance for these spaces, but our GBCI reviewer issued a mid-review clarification request asking the team to provide the guidelines prior to receiving our final design credit review--in other words, now. LEED Interpretation 10102 underscores that TGs are indeed required--we already knew this--but there's no mention as to timing. In the real world, especially for this huge project, tenant guidelines take months to draft, obtain approval and funding for (think back to the 4 Times Square guidelines-100's of pages long). We've been given the option of 1. placing our entire project on hold or 2. the option of deferring the 3-4 credits that need to be addressed by these guidelines. We've offered to meet them halfway by providing an Owner statement indicating the intention to write guidelines. This was not acceptable to them. The reviewer again offered us the two options and then a third, that of escalating the question to GBCI directly. My questions are, does this seem reasonable to anyone? What is my best course of action at this point? Incidentally, the issue wasn't raised in preliminary Design Review.