Confusing question i-485 visa in old passport

[lucy91 0]

Hi everyone, I am US citizen, and I am filing i-130 together with i-485 for my mother, she is in USA now and have a question in i-485 part 1. She has two passports, one is new and one is invalid but it contains visa. There is a question in form i-485 "Passport Number used at last arrival", so I indicated her new passport and then they ask a "visa number from this passport", should I write here her visa number from old passport or leave it empty, I am confused?
Thank you for your help!!!

[Chancy 6,241]

*** Moved from Bringing Family of USC forum to AOS from Work/Student/Tourist Visas forum -- topic is about AOS of parent already in the US ***

 

13 minutes ago, lucy91 said:

should I write here her visa number from old passport or leave it empty

 

It's fine either way.  I would write the existing visa number from the old passport.

 

[lucy91 0]

9 minutes ago, Chancy said:

*** Moved from Bringing Family of USC forum to AOS from Work/Student/Tourist Visas forum -- topic is about AOS of parent already in the US ***

 

 

It's fine either way.  I would write the existing visa number from the old passport.

 

Thank you!

[OldUser 6,633]

I'd think she used new passport to enter the US but along with visa from old passport. You'll likely need scans for both passports in the packet.

[lucy91 0]

2 hours ago, OldUser said:

I'd think she used new passport to enter the US but along with visa from old passport. You'll likely need scans for both passports in the packet.

yes, she used a new passport and on her form 94 is also a new passport info but with old passport's visa. Should I then indicate in a cover letter why did I attached a copy of old passport?
Thank you!

[OldUser 6,633]

6 minutes ago, lucy91 said:

yes, she used a new passport and on her form 94 is also a new passport info but with old passport's visa. Should I then indicate in a cover letter why did I attached a copy of old passport?
Thank you!

You can, it doesn't hurt.