Unlawful person apply for EEA Family permit to the UK

[oluwaloseyi]

Hello Guys,

Please a friend of mine is really sick of his immigration situation at the moment and i chosed
to help him by post on immigration boards

He's a non EEA and married to an Irish citizen and they have 2 kids together which are Irish and British citizen,
he has no Irish residence permit and they have decide to move to the United Kingdom either Northern Ireland or England.

Please is he eligible to apply for EEA family permit/visa while he has no Irish residence permit in Ireland?

Can he legally live in the UK with his family while he entered the UK without Visa?
Can he also apply for a EU residence card in the UK? and won't be denied or take a longer process base on his entry procedure without a visa to the UK?

What about if he finally successfully and secured a permanent residence in future would he be allowed to apply for UK citizenship on bases of he has breach UK immigration laws.

Your response will be highly appreciated and thanks a million in advance.