Could be part of the packet in lower income areas.https://www.tenantalert.com/tenant-screening-servi...

South Atlantic Bank Servis 1st Bank Bankers here are very focused on relationships.

Go to linkedin.com search on address.Skip trace servi es like;   beenverified.com have address search. 

Which can go futher than NCOA......All these are great servies to use to get your mail more deliverable....Again this stuff can cost but its worth it.

@Danny Bower USPS offers bulk mailing servies, its $200 a year....and you have to send more than 200 pieces each mailing...they charge .21 upfront to buy the stamps, then they charge you another .10 when you get ready to mail them....31 cents to mail..Bulk mailing permit, for the most part anyone can get it....Bulk paper is less than a ent per sheet (costo)I buy my envelopes from walmart ($1 for 100 envelopes)  .01 cent per envelope..And ink varies, i usually buy alot and i set my printer to print fast drafts and spit out less ink...I pay my neices and their friends to fold..However as of lately i found a very inexpensive print company  that chrges me .21 cent to mail, and they print thier stamps on the envelope for another .26 cents (pitey Bowes)So im paying roughly .47 cent now, but im mailling over 4k pieces so it became too much for my slef, but it was great doing it when i was only doing 1000 pieces a month...