In the video he said he duct taped the scraper to the vacuum.

There is a guy with a shop vac and a putty knife duct taped to the shop vac handle.

I was shocked that they matched the color so well that you can't even tell there was ever a hole.

White or colored envelope?

I need help from those who are experienced or knowledgeable in the field to share insights into the scope of work during the design development phase of a new home design.Also, what does it mean when it is noted that “The Design Development Documents shall illustrate and describe the refinement of the design of the Project, establishing the colors, textures, materials, fixture selections, and appearance of the Project using plans, elevations, and specifications?”

We have done several homes 1300-1500 soft with a completely new furnace & central a/c for $5400-$7000 depending on the extra duct work etc needed for new runs. 

I would to to fill/repair with some kind of epoxy that roughly matches color in large part to strengthen those cracks and prevent them from worsening and then cover the center of the stairs with a carpeted runner.

I have also, in some rare situations, let a tenant out of a lease without penalty, such as a job loss, or moving out of state, things like that.I had a few applicants who wanted to repaint to a different color, I said fine, but can't be a DIY job, it must be someone professional I hired, a color we both agree on, and the tenant pays for it. 

Any one on this thread who can provide some color on the current situation on the ground. 

It makes the build a lot easier and gives you a lot better opportunity to run air ducts and plumbing runs with the least amount of pain and best finished look.