Keep a reasonable emergency fund, then throw the rest at the debt, highest interest rate first. The things you are saving for are either consumption items (personal home, wedding) or will involve taking on even more debt (new rental property). First Rule of Holes: when you're in one, stop digging. You need to dig yourself out of this first rental unit before jumping into a second.
You have time -- you don't need to do everything right now. Be patient, take a few months, and spend your time/energy/money getting the current rental fixed and rented and the debt paid down. Then see where the monthly cash flow settles out when the expenses are gone and the additional income is flowing in. If you're making good money from this rental when all is said and done, that will then help you get the rest of the debt cleared quickly, and you can resume saving for your other wants.