Nope. Many people cannot get credit cards with credit limits that high. You are talking about the kind of credit available to someone who is earning a reasonable salary and has a long credit history. A person who meets that description is not likely to need to move for financial reasons in the first place.

https://money.stackexchange.com/questions/6341/whats-the-ave...

Also, it is just not a good idea to borrow $15,000 on multiple credit cards at high interest rates when there is no guarantee that you will earn sufficient income to pay that money back in your new location.

It's easy to give out this kind of trash advice to other rich(ish) people on the internet. I wonder if you'd dare tell someone who was actually in the kind of situation you're describing that they ought to incur $15,000 in credit card debt and move to the middle of nowhere.