@Brennan Crick - I too have to applaud your creativity on this one. I would personally be leary of taking a HML right away and trying to re-fi out of that at years end. At least have your option period used before going that route. If you stumble on getting re-financed this one could really end badly, however with risk comes reward. I think you get the obvious, bust butt on improving credit and reducing your debt. If your still hovering too high once you get closer to the end of your option I would seek out a potential partner... better yet, start that process now!
I would gladly "option" a building to a tenant that needed work, while I would be fair if there was a problem for you at the end of 12 months there are others that might not be so forgiving... its a contract after all, your an adult and you should understand the risks before you put your money and effort into the deal. Then again, I cannot part water and have screwed up many times (I like to say I have a degree from the "School of Hard Knocks"... now my wife @Kristan Avila keeps me in check). What Im eluding to, be sure you have an equitable escape should rates, time, etc. turn against you in the future. Putting a year into your first deal and having the whole thing unravel because of a technicality - that would hurt (Im simply referring to your 12 month option... if it runs out you may have provided the owner some much needed equity, for free!)
Its ballsy and ambitious... I applaud it, respect your tenacity, and wish you the best! Pull this off and you've proven extremely resourceful. I think your asking the right questions... spend some time digesting some Kiyosaki, get creative and remember this is NOT a individual sport, rather a team effort. I missed out on a year of acquisitions because I had blinders on (back to my wife on that story, once she finally "corrected me" were buying again... and having a ball doing it!