I'm not sure you have the authority to sign documents w/o special authority...
1-2	I'm	_	_	_	_	_	_	_	_
1	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	4	nsubj	4:nsubj	_
2	'm	be	AUX	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	4	cop	4:cop	_
3	not	not	PART	RB	_	4	advmod	4:advmod	_
4	sure	sure	ADJ	JJ	Degree=Pos	0	root	0:root	_
5	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	6	nsubj	6:nsubj	_
6	have	have	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	4	ccomp	4:ccomp	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	8:det	_
8	authority	authority	NOUN	NN	Number=Sing	6	obj	6:obj	_
9	to	to	PART	TO	_	10	mark	10:mark	_
10	sign	sign	VERB	VB	VerbForm=Inf	8	acl	8:acl:to	_
11	documents	document	NOUN	NNS	Number=Plur	10	obj	10:obj	_
12	w/o	without	ADP	IN	Abbr=Yes	14	case	14:case	_
13	special	special	ADJ	JJ	Degree=Pos	14	amod	14:amod	_
14	authority	authority	NOUN	NN	Number=Sing	10	obl	10:obl:without	SpaceAfter=No
15	...	...	PUNCT	.	_	4	punct	4:punct	_
