(decedent was domiciled in Georgia and devised condominium in Florida to mistress; decedent had entered into contract pre-death to sell condominium, but died before closing; condominium ultimately sold and mistress sued to recover sale proceeds; executor, trustee of marital trust under will and beneficiary under will claimed devise had adeemed; trial court held that devise had adeemed; on appeal, court held that specific devisee (mistress) entitled to remaining balance of purchase price attributable to specifically devised property that has not been paid as of date of decedent's death; dissent would have applied doctrine of equitable conversion which would have made the condominium personal property as of date of decedent's death and ademption under GA law would have applied).