Should I attach a statement for first year of choice?

I'm a US citizen and my husband became a green holder this year 2018 on Oct 14. He also has substantiated presence of 191 days in 2018 , (the rest of the days in 2018 on a B2 tourist visa and 76 days in 2017 also B2). From what I understand he's a dual status alien this year and we can fill jointly. 

The question is do I need to also need to attach a statement for the first year of choice or any other forms for 2018 tax return?

He had no income  in 2018 and he doesn't have non-US accounts or assets of more then 10k$.