No, the priesthood is reserved for Catholic men.
.
AnswerNot really, a man is supposed to have a vocation, and the six to 12 years that a man will spend in the seminary is technically to "try" his vocation and make sure that it is from God. Only if he spends this time and discerns that it actually is God's Will for him, AND the Bishop thinks so, then, at the ordination ceremony, the Bishop will "call" him to the priesthood.
Anyone who decides they want to be. Catholic means universal - Jesus came for all. A person would go to a priest to ask the steps they need to take for Baptism.
Yes, if he had been married and had been a priest in a similar religion - Orthodox or Anglican. He may keep his wife when he becomes a Catholic priest. A Catholic man who is a widower can also become a priest but may not remarry.
Anyone may serve at Mass IF the priest celebrating the Mass allows, it would be up to the individual priest who was the celebrant.
Anyone can baptize a baby in case of necessity. Otherwise it is the priest who should do it.
It depends on what kind of parish. If he is Catholic, then no, he can not marry because he is already "married" to mother church. However, if he is an Ipiscable priest and is married, but deciedes to become Catholic, then he may be a married Catholic priest.
No, in order to become a Cardinal you need to be priest or bishop
yes
No
no, he wished he had become a Lutheran minister.
In theory, any Catholic male can be elected pope. In practice, the election is usually done among the cardinals, and I suspect it's fairly unlikely that a married priest - who would be sort of an outsider within the Catholic community - becomes either a cardinal or a pope.
No, in order to become a Cardinal you need to be priest or bishop
Catholic priests will refuse to marry anyone not belonging to their faith. A Protestant pastor will do the job.