Re: Help with a motivational letter for general conservation
Welcome to the forum.
There are plenty of examples of such letters on the Internet and within the Letter Writing section (under Resources) on this forum.
We don't write anything from scratch for people. Do research and then attempt to write the letter yourself (or rather, make sure your fiancé writes it), post it here and then we can help to tweak it.
Remember - correct capitalisation, punctuation and spacing make posts much easier to read.