@Account Closed A couple things I've noticed. Your main dilemma here seems to be the lack of a down-payment. Which is completely understandable. Have you thought about taking on a private investor (or investors) - you know? Your doctor, the dentist, the nice old lady who has funds sitting around begging to be used, or even the auto mechanic who does work on on your car? Work with these individuals, I'm sure they would love a great return on their money.
Second, as many suggested, consider a live-in hack. You mentioned that you rather continue to live "rent-free." The problem is that living rent-free isn't necessarily generating any income or equity for you. Even with a live-in hack, the money you're paying in is (a) Building your equity in the home, and, (b) If you're renovating while living in, you'll get the tax benefits, as well as the force appreciation, more equity for you.
Eventually you can rent it out for a stable cash flow and refinance on the original home to utilize for your next property.
Or, you can always entertain the idea of a MFH (less than four units) - you live in one, and use the potential income to supplement qualifying for a mortgage.
These are very loosely-given suggestions, and your due-diligence is of the utmost importance. Take your time and don't rush and make sure that the first property you get is a GREAT deal!