Quick question RE: I-485

[Uehavshiy]

A quick question, please.
If applicant is 85 years old, does she still need to submit a medical examination certificate along with I-485? Is it possible that Affidavit of Support will be supplied not by direct relative (daughter, US citizen) who had originally submitted the I-130 form fror her mother (and the form has been now approved), but by someone else (grandson, GC holder)?
Thanks in advance.

[справочник]

A quick question, please.
1. If applicant is 85 years old, does she still need to submit a medical examination certificate along with I-485?
2. Is it possible that Affidavit of Support will be supplied not by direct relative (daughter, US citizen) who had originally submitted the I-130 form fror her mother (and the form has been now approved), but by someone else (grandson, GC holder)?
Thanks in advance.

1. Да, должен.
2. Спонсором может быть любой гражданин или постоянный житель США, вне зависимости от родственных связей.