There are plenty of good defense attorneys in Washington County, OR and many of them might be able to do the things you indicate. Call the Oregon State Bar and ask for a referral either from the Pro Bono Panel or the Modest Means Program.
You can also apply for a public defender. Ask at the courthouse about it. Many of us private attorneys do take cases on a sliding scale basis, so it's always good to consult with people and then just ask them about reduced fees. However, felony cases are usually more expensive than misdemeanor cases, so you should be prepared for that.
My responses to posts on AVVO are not legal advice, nor do they create an attorney-client relationship. In order to provide true (and reliable) legal advice, an attorney must be able to ask questions of the person seeking legal advice and to thus gather the appropriate information. In order for an attorney-client relationship to exist, you and I both have to agree the the terms of such an agreement.