Answer:
a. Gordon made a gift when the real estate was purchased of <u>$450,000</u> to Fawn.
Since Gordon gave 50% of the real estate to his sister as a gift when he purchased it, the gift must be valued at the time it happened ($900,000 x 50%)
b. Gordon's estate must include <u>$2,900,000</u> as to the property.
Gordon purchased all the real estate by himself, so his estate must include the value of the whole property.
c. How would the estate tax consequences change if it was Fawn (not Gordon) who died?
Fawn's estate would include <u>$0</u> as to the property.
Since Fawn didn't buy the property, her estate cannot include any amount of it.