What should i write at the end of the letter?! i need quick help.....?

Assume i'm a leader of an organization, and i wrote a letter or proffessional e-mail to somebody. Atthe bottom, i do not want to write e.g Regards, or Best Wishes, etc..... I want to write something that the reader will know i'm the leader or sponsor...Is it possible to say e.g Your... show more Assume i'm a leader of an organization, and i wrote a letter or proffessional e-mail to somebody. Atthe bottom, i do not want to write e.g

Regards, or Best Wishes, etc.....

I want to write something that the reader will know i'm the leader or sponsor...Is it possible to say e.g

Your Leader,
name

Doesn't sound polite though...

Is it fine to write e.g

Leader,
name!

I really do not know, please help....I'm sure you guys know it....
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