Your understanding on both points is correct. If you save the form, you can continue to edit it, until it's submitted for review.
Downloading the form can be helpful for offline work but you are correct that the funtionality is limited.

We are looking into a underground parking and having two building on top of it. Having read the information on multiple building certification I am not sure on how to define the site boundaries. When dealing with the underground parking structure would most of the SS credits (SSp1, SSc1, etc) be under the Master Site, or will they belong to the first building built?

Thought I'll share this with everyone. We wrote to USGBC for clarification on whether the LEED boundary should extend to the limit of work on an urban site (where we are requested by the City to do some work on curbs, sidewalks and streetlights). The MPR language was ambiguous.

USGBC replied that we should use the property line and further, that "Version 2 of the MPR Supplemental Guidance, forthcoming, will include guidance addressing this issue".

Has anyone found any guidance or formulas for determining peak and daily average visitors for a residential project? There will be approximately 200 residents in a planned condominium tower pursuing LEED-NC 2009, but I'm uncertain how to best determine the number of daily and peak visitors for this building type. Any suggestions or past experience would be much appreciated!

Yes. Not submitting a Design credit during the Design phase review doesn't preclude you from submitting it later. The D phase review is just an opportunity to get advance word on credits, if you want it.

Maria, it does not make a difference in terms of LEED requirements who registers the project or is the project administrator.

Yes, you can. Registering your project gets you started in LEED Online. The actual documentation process and working with the team can be a lengthy and evolving process.

We always have requests like that from our clients. How we interpret this I would say its like a framework or a roadmap - showing targets, points (current, target, achieved), green costs, benefits and performance projection for 3 years min. its more for the board rather than for technical people. it works in our case.

google USGBC roadmap or framework. hope it works for you too.

I'm not aware that such a list exists, although it would be quite useful. Perhaps we'll see it emerge down the road.

The only two times I've heard of discounts being available for certification fees are 1. If a project has achieved LEED NC it can then register for EB O&M for free, and 2. There was a limited period of time when they offered to refund certification fees for projects that achieved platinum.

There may be other special circumstances, but can't think of them off the top of my head, so this may not apply to all or most projects.