Boss Bar and Spa is for sale as a turnkey salon or business opportunity. If you’re a stylist, esthetician, wellness pro, or entrepreneur with a vision, this space is ready for you. Boss Bar and Spa (138 3rd Street) building, contents We’re open to selling them together or separately, whichever works best for the right buyer. Boss includes a brand new heating and AC unit with warranty, and both properties sit in a prime Main Street location in Underwood, Iowa.