@Christopher Lamp exciting time for you and your girlfriend. My wife and I have house hacked, flipped, STR'd, MTR'd and LTR'd rentals for 20 years, so I've got some experience in all areas. We have an LLC we run our business through but when we get loans, it's still through our personal credit. W2 income is very helpful in obtaining the loans. Hard money loans are an option but keep in mind, the fees/rates can be significantly more so you don't want to hang out long with a HM loan.
You can always do more with leverage, but I agree with other posters here that when you flip the first few times, you will learn a lot but you likely won't hit your optimal budget, so you may want to start slow. You'll learn a TON. I keep "lesson learned" notes to reference as we go along because it's too much to remember (and sometimes you want to forget some of the painful moments, ha!)
I love to talk real estate and investing anytime. Lots of options and paths forward and a great community hear to connect with. Good luck!