Where do I mail paper copy 1040 when forms 8453 and poa form 2848 must also be filed --- do they all go together???

Doing sister's taxes - she is in care facility.  Have figured her 1040, have signed and filled in 2848 ready to go.  Also understand 8453 with copy of POA needs to be mailed in.  Will be paper filing with me signing as POA designee.

1.  Does this go all together to Fresno as one mailing?  Am seeing all sorts of conflicting info in your community answer section.

2. If not all together, very specifically, what forms go where separately  --- addresses please!

3. For signature, is format correct as      her name by my name, POA

Sample:   Jane Doe by Sally Smith POA