Even using zip code will eliminate some records as the assessors tend to have a lot of parcel with incomplete, missing, or inaccurate property (situs) addresses.

I may have a filing obligation even where there is no income tax due.Each state is given pretty broad authority in establishing their jurisdiction (nexus is just the right/jurisdiction to deprive one of property essentially).So Ohio I know is complex because I had to prepare a couple.Basically for state income tax nexus is determined by situs of real property. 

You would typically need the APN to start your search and maybe the property situs address.

You may be able to get the assessors data and then use that to determine absentee owners by comparing mailing and situs addresses, but that is far more difficult and confusing than using Listsource. 

For about $50 you can hire a programmer on Odesk.com to scour the tax records and create a list of owners who live at a different address than the situs property.

Please call them right now so I can also add their home to my portfolio.So there you go all you buy and hold junkies just buy a few homes and have a non situs address and you should get wholesalers pounding your mail box wanting to sell you property.

In Cali, removing a MH from its original situs makes it very difficult to finance if it's on real property.

To keep us busy and out of the way while they chatted, they'd sit us on the kitchen floor and give us Campbell's soup cans to watch roll across the slanted floor LOL.

My tenants even fix stuff, GAK all my fun being taken from me!

On the other hand when a HUD MH, built after June 15, 1976  goes with the land and providing  it was never moved from its original situs and the area the MH is located in IS in the PATH of PROGRESS in my opinion that would make for a great rental investment.