I Am 71 Blogurl:blogspot.com What Do I Do To Bring My 71 Years Old Mom To The US? I Am An American Resident?

What do I do to bring my 71 years old mom to the US? I am an American resident? - i am 71 blogurl:blogspot.com

Nobody in my family, but left. It is old and nobody cares about them. She also has to live not even a place in the country that have both (I mean, we have) our own property. Can the visa process has been shaken because of his age? (I know, it could take several years for getting the visa)