Guess I'll try to get my money's worth ....

1. What are you most passionate about?
I am passionate about helping, and staying close to, my family (including and especially my three younger siblings), and diligently serving and helping (if possible) my clients.

Drop the "(if possible)" qualifier. I assume that you are passionate about being a good lawyer to your clients under any circumstances.

2. What are 3 things I'm most thankful for?
Family -- closeness of family, both emotionally and in physical proximity.
Friends -- having a number of close-friends, I've had for a long time, who know me well and have similar interests
Comforts -- generally living in a prosperous country, and having no true lack of physical comforts or safety

That's fine, and more detail than one often sees (check your commas and periods, though).

3. Most influential person other than parents:
The older of my two younger brothers, who is three years younger than me. We were very close growing up, and are still pretty close. He is like me in many ways, but is more easy-going, and I always value his perspective.

This is fine, but has he been truly influential on you, or is he primarily a close friend and advisor? Has his perspective influenced you in some way?

4. Four things my friends say about me:
Articulate
Hard Working
Intelligent
Genuine

5. Best Life Skills:
Articulate
Hard Working
Intelligent
Genuine

I think this is a duplicate of your response to 4 and not actually your response to 5?

6. Most important thing looking for in another person:
Emotional intimacy.

Emotional intimacy is something that you want from your future relationship. What are the characteristics you are looking for in a partner? Presumably the ability to be emotionally intimate, but what does that mean to you? What does it look like?

7. Other than appearance, first thing they notice:

I think I'm a relatively articulate speaker, but I know I tend to be much more assertive in "professional" situations. In social situations, I think I come off as more reserved.

Just say that you "are," rather than you "think" you are. What do you want to highlight...that you are an articulate speaker? that you are assertive in professional situation? (I wouldn't add the qualifier about your being reserved in social situations, unless this is what you want to focus on in your response to this question...)

8. One thing people wish they'd notice about you right away:

Maybe not "right away," but I wish people would notice that I am interested in a lot of "creative" type things, because that doesn't really come up in most situations I am in ....

What sorts of creative type things? I suggest dropping the part that begins "because that...."

9. How to you typically spend your leisure time:

I enjoy playing the piano a great deal (though that is certainly not to say that I believe I'm particularly good at it!). I enjoy playing "hobby games" with my friends (i.e. "nerdy," strategical games like Dungeons and Dragons). I used to play video games, but don't have the time much anymore (I don't think it's "unadult" though.)

No need to qualify your piano playing in this way; nobody is going to assume that you are conceited because you enjoy playing the piano (you could say that you're working on playing better, or something about the kind of music you play, or that you play mostly for your own enjoyment, or whatever...).

Definitely drop the defensive bit in parentheses about video games not being "unadult."

I "typically" spend my leisure-time on relatively laid-back things; not that I don't like "going out" and doing more active things, I just need to be with people (or a person) whose company I enjoy!

This comes across a bit as saying that you sit at home not doing active things because you don't have anyone to do them with. You could rephrase it something like: "I also enjoy going out and doing more active things [like...what?], especially with people (or a person) whose company I enjoy!"

10. Five things you "can't live without":

1. Hope
2. Galliker's Iced Tea [this is a local brand; those in my matching area would probably know what it is]
3. The Internet
4. Sleeping-in from time to time.
5. Music.

Fine...

11. Describe last book you enjoyed and why:
"Man's Search for Meaning" by Viktor Frankl.
I hesitate to put that, because it's such a "heavy" book. (Viktor Frankl was an Auschwitz survivor who founded the psychological school of logotherapy.) His book is about the psychological impact of the concetration camps, and his school of thought, which is in contrast to many other schools of psychology: i.e. the primary drive of human beings is not desire for power or desire for pleasure, but desire for purpose. I like that Frankl's outlook is so positive, but no one can say he's "naive" given what he went through.

I would drop the first sentence ("I hesitate...."), and then just remove the parens from the 2nd sentence. Otherwise, it's a nice description of why the book was meaningful to you.

12. Describe one thing only your best friends know:

Probably most of the things in this profile?

If you can, it's always better to list something specific here. Can you come up with anything? It doesn't have to be anything deeply personal, just something that tells us a little something about you.

13. Any additional information you want your matches to know?

I tend to be someone who favors a small number of close friends. I am pretty hard on myself sometimes (i.e. perfectionist). People might think I am cynical at times, but actually I ultimately believe that people are basically good.

Is this really how you want to present yourself right off the bat to potential matches? As a cynical, perfectionist loner who beats up on himself when he doesn't measure up to his expectations (okay; I'm exaggerating a little there...lol)?

I'm not necessarily looking for someone exactly like me or with identical interests -- I'm looking for someone who brings out the best in me, and I in her!

Nice!