“But there is one thing all agree upon, and that is that where there is a question of Jewishness and a conversion pro forma (known as giyur lechumra) is required, as with any conversion, a sincere, wholehearted, and devoted lifelong commitment to the observance of mitzvos in an orthodox manner is a requirement, the abandonment of which will invalidate the conversion.”
shmoel: Thanks for answering this. I had to read the whole post a few time as I did not understand why and geirus would be required.