Sponsor moves after filing i-130?

[srac 0]

Hey guys, how are you? I had a question, lets say i file the i-130 for my wife, and at the time i was living in a certain address, and now i've moved.. what happens then?? If my mail is being forwarded to me at my new address does it matter? Or do i have to notify immigration? Of course it would be wiser to notify immigration, but will this slow down the visa process .. Also I had another question, what if i plan on coming to the US, opening a bank account getting an ID, and drivers license etc.. but will be staying at my sisters house, for a few months, then leaving the US for a few months and coming back again. Could I list my sisters house as my address since i would be living in it for a month or 2? Even though I'd be leaving the US for about 4 months or so then coming back again later.. she could forward me the mail, does anyone know if theres a problem with this? As listing my sisters house as my address, and if a sponsor should move, if there would be a problem, for eg.. if at the time of filing the i-130 i list my sisters house and my address but then, after it gets approved a few months later and i'm back in the US and have my own address.. for the i-864 form I put in my address then it wouldnt be the same address as on the i-130? Or should i just enter the same address to continue recieving the mail there? My question is does it matter about the address as long as i'm going to recieve the mail anyway? Thank you very much for your help. I appreciate it oh and i'm going to be using a co-sponsor don't know if that'll help but just saying.

[srac 0]

anyone?