When encountering the term “related party” or “related person” in a statute, it is always important to check the definition.1 For example, the definitions for the two provisions designed to combat abuse in the installment sales area – the so-called two-year disposition rule2 and the sale of depreciable property rule between related persons3 – have vastly different “related person” rules4 even though they are stabled in the same section of the Internal Revenue Code and deal with similar problems in the abuse area.