Should I sell my house or rent it out?

[Afuera]

Question:
A couple own 2 properties, one on the Northside, one on the Southside.
Can they move in together, keep one property as an "investment" with a room rented under the room for rent scheme. Both properties are in separate names. The girl does stay in her house a fair bit.
My opinion would be technically dodgy but in practice fine?

The house would have to remain as her principal private residence (PPR) for her to be able to rent out a room under the rent-a-room scheme. Technically I think that Revenue consider that your PPR should be your main residence, so she could be on dodgy ground if she wasn't really living there. You're right though, in practise it wouldn't be that easy to catch her.

 

[Howitzer]

Question:
A couple own 2 properties, one on the Northside, one on the Southside.
Can they move in together, keep one property as an "investment" with a room rented under the room for rent scheme. Both properties are in separate names. The girl does stay in her house a fair bit.
My opinion would be technically dodgy but in practice fine?

Technically dodgy, and naive in practice. The ins and outs of this have been discussed ad infinitum.