Wills, Trusts, and Estates
A negative will is where one specifically says that someone does not get something. This enables easy disinheritance.
Historically, negative wills were not allowed. To disinherit someone, it was necessary to specifically give away all of your property to others. Anything not given away in a will was able to be contested by the attempted-disinheritee. Now however, both the UPC and Virginia allow negative wills.