Would warn you that H&C is not guaranteed and a big risk. Not having any relatives to depend on and having no family in the area are different. H&C takes around 3 years. Any health insurance may not cover preexisting conditions and only cover emergency care. You would have to pay for routine treatment, ongoing treatment, etc. You need to see if your savings can cover all those expenses. Many are in a similar position and have tried 1-2 times (and many have tried for years) to sponsor parents. Parent sponsorship was never guaranteed.