Legacy dream meaning is explained below using 3 different sources. Each interpretation is shown with its source.

Interpretation 1 — Internet Archive - Anonymous

It is always a fortunate sign to dream that you receive a Legacy or a gift; but naturally the extent of the good fortune will depend entirely upon the nature of the Legacy.
Source: Mystic Dream Book Author: Internet Archive - Anonymous

Interpretation 2 — Stephen Girard

To dream of receiving one, denotes losing whatever you own that is in the hands of another, involving you in litigation, debt, unhappiness and trouble.
Source: The Mystic Dream Book Author: Stephen Girard

Interpretation 3 — Margaret Hamilton

Favor paid for by another’s life sacrifice
Source: Dream Dictionary Unlimited Author: Margaret Hamilton