George Gaynes here plays a man with six months to live. In real life he lived another 30+ years, passing away in 2016 at the age of 98.
Taking inflation into account, the $100,000 would be the equivalent of around $257,000 (as of December 2020).
This episode aired a year after The Spy Who Came In For A Cold One, which also centered around a millionaire befriending the bar patrons.
The title is based on the common expression: Where there's a will, there's a way.
George Gaynes later went on to costar in Punky Brewster, which had a theme song by Gary Portnoy and Judy Hart Angelo (the composers of the Cheers theme song).