羅鷹石阿爺喺清朝年代已經到泰國做工，所以羅鷹石7歲嗰時亦跟阿爸到泰國生活，做雜貨布疋買賣，賺咗一筆錢。1938年佢帶住三萬元返香港，初時喺南北行做洋雜生意，連廣東話都唔識。到1956年，見內地難民大量湧入，於是搞地產，一年內賺十萬蚊，豐厚利潤令佢決心大搞。1963年成立鷹君，好快就壯大，成為一線地產商。
Luo Yingshi's grandfather had already gone to Thailand to work in the Qing Dynasty, so Luo Yingshi also went to Thailand with his father when he was 7 years old, doing groceries and buying and selling, and making a lot of money. In 1938, he returned to Hong Kong with 30,000 yuan and began to do foreign miscellaneous business in the north and south, and he did not even know Cantonese. By 1956, seeing the influx of refugees from the mainland, he engaged in real estate and earned 100,000 yuan a year, and the huge profits made him determined to make a big deal. In 1963, Eagle was established and quickly grew to become a first-line real estate developer.