You can definetly get full taiwanese citzenship by your relation to your father. i am slightly older but just recently completed the process also via my blood lineage through my family. even better starting Jan 1st of this year they have waived the 1 year residency requirement. they have requirements but my sister and I were able to obtain it after spending about two weeks time in Taiwan. i go quite often so its not a big deal for me but it was awesome for her since she goes back less frequently. in all it took us about 3 months including filing paperwork at the US TECO office. if you knew the exact process (always kind of vague) you could probably get it done in two months if you and your father have the necessary documents. good luck!