Gary:
I am going to first commend you on your mild reply - then take most of the previous posters to task: This place is for folks to ask questions and :new_2gunsfiring_v1: it really does NOT matter what the inquirent license level is - NO ONE WAS BORN KNOWING ALL ABOUT APPRAISING -

and some folks with licenses consider ourselves pretty dang knowledgeable.
The putative know-it-alls (particularly those who self-diagnose as omniscient) can ask for clarification in a MUCH pleasant and assisting manner - particularly to newbies, and could certainly show a little more respect to other posters who are veterans of this place. :new_ukliam2:
Now that said- Gary First start out with a real clear idea of intended use and user - Start of your Scope of Work definition.
Now clarified (however briefly), your inquiry should next turn to H&BU carefully defining subject... (Yeah, and I'll tell you how to suck eggs next, dear)! Is it a tear down, low-end habitable as-is, or a fixer-upper requiring an influx of cash to bring to marketability? Or perhaps will it compete with 'average' properties in the area? Maybe it is a little rough cosmetically, but had the expensive upgrades done prior to Daughter's pending default! What needs to be done to it to turn it into competition with various other classes of homes recently sold and presently on the market?
So now we turn to analysis of the market... again specific to YOUR SUBJECT.
Many markets with burgeoning foreclosures on the market bifurcate- a bunch of home-buyers would no more buy a pig-in-a-poke than fly to the moon... Some other wanna-be-investors (reasonably or not) consider that they are going to achieve bargain basement prices if they bid on repos! (Even when they are novices who overbid

) Those idiots can really skew your dataset.
The cost to cure anything is going up stupidly in the present environment - I just laid out nearly six hundred bucks to paint the exterior ONLY of a 1020 sf rental property and that has nothing to do with the labor cots!! be REAL sure you understand what materials and labor are being figured in real life today and in your market!
If the local market is tanking... it may get to a point where the great quantity of foreclosures on the
market as a whole... set or get real close to being set BY what is available in the way of repos with no multi-level category of sale at all! I actively dispute preconception of where a property fits into the MARKET until I can clearly define buyers current habits and how my subject compares in that market as of my effective date!
Not sure if this helps but to summarize you would value ANY home based on:
WHAT are the properties actually competing, and how would YOUR SUBJECT fit into probable buyer response?
You may want to use bracketing in your delivery of analysis for probable low end value, most probable (Market) and high end of value range.
Part of your SOW discussion should probably include asking: What dear ol dad doing with the place - bailing out dear daughter or thinking he is gonna become a real estate baron one house at a time? You would probably want to be real sure you do not raise unrealistic expectations of return on investment! Take a final step back and make sure you are not leading someone into stupidity.