Answer:

hereto

Answer	Crossword Clue
HERETO	From .. Eternity
HERETO	Regarding this matter
HERETO	Attached ...: included with this

HERETO	Attachment adverb
HERETO	As part of this document
HERETO	Attachment word
HERETO	Contract adverb
HERETO	Annexed ..: attached as part of this document
HERETO	Legalese adverb
HERETO	"From ... Eternity"
HERETO	... stay (permanent)

HERETO	Regarding this point
HERETO	Attachment word, in contractual language
HERETO	Where an addendum may be attached
HERETO	As in this document
HERETO	Attached follower, in contracts
HERETO	Regarding this
HERETO	In this matter
HERETO	To this point.

HERETO	To this.
HERETO	Contract word
HERETO	"Love is ... stay"
HERETO	... stay (not temporary)
HERETO	Business-letter adverb
HERETO	Till now
HERETO	Ad hoc
HERETO	How an addendum may be attached

HERETO	"Our Love Is ... Stay" (Gershwin standard): 2 wds.
HERETO	Word after "attached"
HERETO	Contractual adverb
HERETO	Regarding this point, in legalese
HERETO	Attached ... (legalese phrase)
HERETO	'From -- Eternity' ('53 film)
HERETO	'Our Love Is -- Stay'
HERETO	On this

HERETO	Preposition seen in contracts
HERETO	How a document may be attached
HERETO	"From - Eternity" link
HERETO	Legalese for "pertaining to this"
HERETO	Regarding this matter, in legalese