Also, any tips as to how I can make an initial assessment based on clues when I look at the house in person?

But without the gas/water on neither of us would have any clue how to determine if a furnase or water heater was actually functional.

I have no clue what you're talking about....2.0???

Thanks in advance :) Jared you'll need to know a range of cap rates for your specific:-structure age and condition-tenant base or type of renterYou go get comps of most recently sold multi family buildings in your range of units 25-35 units.You look at the NOI / Sales Price = cap rateSo first you have to understand what a cap rate is what is a NOI is and how to calculate itHow you can manipulate NOI or CAP rate to make a seemingly good deal as a bad deal You have to know the difference between a bad deal or a good deal otherwise you might be setting yourself up for some hard times.Most agents have no clue (in depth) about what cap rates really other than its a formula of NOI / sales price = them selling a property to you to make a commission and its a number you as an investor look for.To determine which cap rates you're willing to invest in you'll have to know how the "cap rate," and this subject property will affect your financial statements otherwise you have no way to plan and you're purely "winging it."

That may give a clue as to some current relatives that you may be able to contact.

i wasnt making offers since i had no clue how much to pay and i didnt know how i would find the money to buy it.  

Those walking through unescorted are able to pilfer belongings without your having a clue, until it's too late ...

I have not a clue how to legally borrow funds for this deal and protect both parties.

No clue! 

Perhaps the "mailman" or someone of that nature to get any clues on vacant properties or absentee owners.