You can't see the person's mailing address to see if they're absentee owners, etc.

Or is there a more effective way?

We indicated which house we have purchased and the address of the house.4.

Anything that constitutes a major inconvenience to the tenant, such that a reasonable court would find one negligent for not addressing quickly, constitutes an urgent maintenance need.Example of the former: leaking water, gas, exposed live electrical wires, smoking in electrical panel, dangerous leaning tree, etc.Example of the latter: poor heat performance of heating system; clogged gutters overflowing causing basement dampness; etc. 

Is there a simple and effective way to analyze a property, or is calculating the cap rate, 1% rule, 50% rule etc, cash on cash, NOI, all necessary?

@Shayla Fletcher I check all properties at http://maps.lsuagcenter.com/floodmaps/ If the flood hazard areas show in blue, (or sometimes grey on old black/white maps) that is the effective map that is used to determine flood insurance rates and whether or not flood insurance is required by lenders. 

So if you direct mail 12 months in a row to the same addresses....it is likely you will get 3-4% of those people calling you back.

I do have a couple of recommendations for you though; Ask the listing agent ' Is there anything aside from price that the seller would prefer to have in an offer,' such as Specific closing date, or a lease back so that they may find a replacement property, etc....I have found this to be a very effective way to extract some of the seller motivation.

It may be a mistake that she is getting the bills (ex the mailing address wasn't updated with the new owner's).Here are a few things I would do.1) go to your county records and look at the deed, mortgage, etc for the current owner.2) call the county and ask if the foreclosure is legit.3) have a title company pull title 4) find the mortgage holder (either a bank or servicer) and ask what happened.If you need any help please let me know.

Multiple marketing messages in one mail piece would increase effectiveness.