Writing

One would have caught to two errors in your header.

Other than that, it's my impression that agents (don't capitalize because it's not a proper noun) expect your manuscript to be as completely free as possible from spelling, grammar, and usage mistakes as it can be. It's not their job to fix those things. It's yours to know how to spell and so on, or get them taken care of before you submit the manuscript.

I'm going to suggest you attend a writer's conference or two, preferably one that includes some agents and editors, so you can find out what kinds of things they are willing to do for you.

One thing to keep in mind is that the competition for agents and editors is fierce, and you have to have the absolutely best manuscript you possibly can before you can try to submit it.