I saw a post from about a year ago in this forum asking similar, but not much in the way of responses (not even in the way of "I'll send you a PM").

@Bradley DavisI actually just spent a good time writing up a good long response of what I would do in my 20s, I'll send you the post because some of it I think would be good for you.I didn't personally house hack, but man I wish I did.

My question is what is my landlord responsibility.

To summarize a response to your questions(1) Would only pay off student debt if interest rates are >7.5%... else would save money for investment purposes(2) First investment.. duplex or triplex would get you the most income (paying most if not all of your PITI payments). 

Once you get a response from someone, you can be more specific and let them know that you have a network of buyers and one of them will actually be the end buyer.You would need to negotiate a low enough price with the owner so that  you can get your fee and still sell it at an attractive price to investors.

Wow, you guys are very fast with responses! 

Thank you for the response. 

I've been looking at picking up houses through the auction sites (Hubzu, Auction.com, etc) and I know that as the buyer I will be responsible for closing costs.

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He would be responsible to pay off the tax leans at closing.