Dear [agent], (good)
Our (as opposite to mine - redundant) memories define us, but Max’s memories are missing (passive, telling, and doesn't work combined ... but I know a way it can ... consider opposites...). He covertly works (consider a stronger verb) for a (the?) Crown’s magistrate (Is this a proper title? If so capitalize) , uncovering his past to find he was unjustly convicted for murder (passive adverbial telling and where's the conflict?) He struggles to recover his missing memories and get the conviction reversed, but must decide between his new life and the old (And?).
TALES OF EASTMARCH is a ##,000-word fantasy novel. (excellent) It is similar to Ed Greenwood’s The Kingless Land, and takes place within (in - no double prepositions ... even disguised ones) the port city of Eastmarch. (Which is where?) (What happened to the spacing here? Remember ... the little things make an impression too.)
I wrote this (This? Remember, the last noun reflects the pronoun. You wrote the port city of Eastmarch. Use a specific here) to explore what might happen (wordy - again be specific or delete this phrase) if someone's memories were removed (passive), and what choices they might (hedging) make. (this sentence fumbles around and makes you sound like you're uncertain about why) It was inspired (passive) by (passive) the quote, "What are we, if not the sum of all our memories?" (I wouldn't say your novel was inspired from a quote. Agents will interpret this to mean you're flighty) (Still not reading a valid reason you're the writer for this work)
I’m a finalist in the Wordclay Short Story Contest of 2008 and wrote two short stories included (wordy verb-prepositional) in the anthology The Orpheus Tales published by (wordy - consider: from) Salvatore Publishing in 2008.
Thank you for your time. (good)
Sincerely, (excellent)
Now I'm going to scare you even more. Fantasy is the hardest genre for a new novelist to enter. Agents and editors for fantasy demand a new premise or unique idea. So, your novel better show more than a criminal chasing his memories. The theme and premise must be deeper than that ... much deeper.
Show us.
Wolfe