I’d use “use” instead of “utilize,”

I am confident in my ability to produce high-quality work under tight deadlines and that, given the opportunity to demonstrate my writing skills, I will prove an asset to the organization.

Or I am confident in my ability to produce high-quality work under tight deadlines. Given the opportunity to demonstrate my writing skills, I will prove an asset to the organization.

Or you could just put the comma before “given.”

I’d eliminate “In addition to my studies in English.” You’ve already said that, and the parallelism is shaky in that sentence.

efforts that promote rehabilitation (no s on promote)

complement, not compliment

my passion FOR urban social issues

oF urban revitalization.

write objectively as part of the collaborative (no period in the middle)

Confluence … has (not have).

Thank you for considering my resume, and I look forward to your reply, (comma) (Or make it two sentences)

If I were you, and I’m not, I’d go over this, especially the end, beginning at “The confluence,” and cut out a lot of adjectives. Let some more of the nouns stand on their own. The letter shows fine qualifications, but it verges perilously close to jargon. Are you sure you want to say, “The confluence of my passion for urban social issues, my enthusiastic appreciation of language, and my experience writing and editing has pushed me to think critically and write objectively. as part of the collaborative process of urban revitalization?” Do people talk like that? Is that fun to read? Is it really the coming-together of these three things that has pushed you to write critically and think objectively?

I’m not trying to be mean here — but you have about 360 words, and 20 uses of “tion.” 5% of your words end in “tion!” With that, plus adjectives festooning every noun (tremendous passion, invaluable experience, great potential, rigorous effort), you have what I call jargon,

Now, it may be necessary in the field of urban planning, as if seems to be in education, to write incomprehensibly. But if it isn’t, I have always found that writing something easy and pleasant to read makes you stand out from the herd in a good way.

http://www.bkedits.com

http://www.career.vt.edu/JOBSEARC/coversamples.htm

http://web.mit.edu/career/www/guide/coverletters.pdf