Today I googled Whitegrass to see what my friends Chip and Laurie are doing.  Found this, http://www.vrbo.com/460010  

they have refurbished the Garage Mahal into a very nice looking place to stay.  I'd book it myself except that I live in CA now.

Plush, and pet friendly for sure. The surrounding XC ski trails are also dog friendly! You can easily ski over to timberline on the timberline trail thats right out the door. An easier ski to WG lodge a few hundred yards away of course!