Thanks. I studied the statutes and determined what to do and what Ned Carey said about the return envelopes being proof is the case also here to. It is just required to send the Intent to the owner's address of record with the recorder, assessor, and on tax roll records and then after that step is done, do a title search (seems backwards but the self help packets from the courts - below - are very clear on the order of the "steps") and determine who else you may need to send intents to.
In this part of Arizona, since there is so much vacant "useless" land that people just let go, not realizing what they got - remote, off grid land, with no water and in many cases no roads to them - when they purchased it for pennies, it is common for "hobby" investors to foreclose on their own, so much so that many counties have self help packets to foreclose the properties which is what I am interpreting. Yes, I have done title searches. Many counties in Arizona have online systems they advise to use in the self help packets.
My intent is not to make a profit as most investors but to add lands to a non-profit I am forming for Christian artists to paint and create works on in an artist in residence program. Also to preserve the vast, remote, and unpopulated lands of the painted desert and petrified forest like some of the large ranch land owners are doing. So the question of it being "worth" it, isn't an issue. It's worth it when the lands are of the aesthetic value we are looking for and/or adjacent to my own holdings in different parts of the painted desert. Still the resale value would make even $3,000. in legal fees profitable, however, since I don't intend to resell I'm keeping costs down by doing it myself, like many other legal matters I have done pro se. And if the owners choose to redeem, I'm fine with that too and like the court give them the opportunity to do so. There are a few developed properties and I don't invest in those, not wanting to put anyone out of their homes.
I really appreciate this forum and the assistance that everyone is so willing to give. Thanks again.