Hiyas, I was just wondering if I should charge, they already offered to buy the images, but no price as yet as I have never sold anything.

However I would be happy even for the exposure of my photos(I am no Ken Duncan)

This is the message they sent me...

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"we have a realestate at <area> and do newsletters etc to the <regions> . I am also looking at updating our website. May I buy a few photos from you. <contact details>"
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It is for a relatively small coastal town up Mid North NSW.

What sort of questions should I ask?

Do I need to do some sort of contract as I dont want the images to be used other than for this person if I decide to let them be used or purchased.

Thanks