It's a 3/2/2 block 1966 in nice condition, it's on a busy main road directly across the main road (40 feet) from a neighborhood with comps at about 260-300k, the neighborhood the property is actually in comps are 230-240k with in ground pools but no updates. this property has no pool but a very big and attractive back yard which one could be added if needed. my question is can we comp at the neighborhood across the road?

Probably moving in myself since its two blocks away and has plenty of room for storage and office. 

There is a 676 sq ft, 2br 1 ba SFR a few blocks from a major university on the market in my area, but my realtor says he is concerned about the small size.

If the paint is fine, but the color scheme is just ugly or unattractive, it's a very different question @Alex Maclagan!

I am in the starting blocks of my real estate career.

This is a basement unit in a brick house with glass block windows.  

Just make sure your comps are all in the same neighborhood as just a few blocks can make a big difference. 

How should I go about introducing myself since I am the "new kid on the block"?

I'm going to show the place today and after a quick interview on the phone I think this person would qualify with flying colors.

You can get 1000 for ~$30 from BossLogo.com - four color both sides, They are nice, I have been ordering from them for years.