Hello Carla, restating some of what others said, you can use a HELOC on your home or cash out refi it. Depending on how you are going to handle that money, and how fast you can pay back will determine what the best option is for you.
I'd also really reflect and see how well of an understanding you have on rehabbing and managing a rehab before going full BRRRR with all your savings.
Before going out and using a dime of your money, I really think you should find an investor locally who does what you are trying to do. Get talking to someone who does BRRR or at the least has flipped many houses. Get them to be your mentor, finding the right mentor is going to help you tremendously. It'll help save you from disastrous mistakes and losing all your hard earned money. $20,000 will go right out the window faster than you think with the wrong deal or mistake. Not to say you don't have the opportunity with your situation to succeed, but you need the right plan too because you won't be able to bounce back as easily as someone with say, $300,000 who can make a mistake or two and keep going.
Wish you the best! You can do this! Good luck!
