The main event will be on Thursday 15 January at 7.30 p.m. in Merrion Road Church, Blackrock, Dublin.
American canon lawyer, Fr Tom Doyle says he has great respect for Archbishop Diarmuid Martin's judgement.
Row with Bishop William Crean over the handling of an ex priest whom the Vatican dismissed from the clerical state last January.
Cardinal Francesco Coccopalmiero favours letting individual bishops make nullity decisions after careful consideration, based largely on the credibility of the couple.
Critical of males celibates who have no adult experience of family life advising on the family.
