Romans speaks of two types of justification. That which is put in us and that which is put upon us.
Rom 3:22 Even the righteousness of God [which is] by faith OF Jesus Christ INTO all and UPON all them that believe: for there is no difference:
Rom 10:6 But the righteousness which is of faith speaketh on this wise, Say not in thine heart, Who shall ascend into heaven? (that is, to bring Christ down [from above]
Rom 10:7 Or, Who shall descend into the deep? (that is, to bring up Christ again from the dead.)
Rom 10:8 But what saith it? The word is nigh thee, [even] in thy mouth, and in thy heart: that is, the word of faith, which we preach;
@Him, I like your name; it's very easy to type.

Look at the ESV word-for-word translation of Romans 3:21-25 from the Greek. Which version are you using?
Rom 3:21 But now the righteousness of God has been manifested apart from the law, although the Law and the Prophets bear witness to it—
Rom 3:22 the righteousness of God through faith in Jesus Christ for all who believe. For there is no distinction:
Rom 3:23 for all have sinned and fall short of the glory of God,
Rom 3:24 and are justified by his grace as a gift, through the redemption that is in Christ Jesus,
Rom 3:25 whom God put forward as a propitiation by his blood, to be received by faith. This was to show God's righteousness, because in his divine forbearance he had passed over former sins.
Paul talks about one justification of all believers' guilt before the divine Judge that Jesus accomplished on the cross that involves two aspects, his declaring us "not guilty" and our being right(eous) with him. He says that all humans are guilty before our divine Judge as his verdict previously in 1:18--3:20. However, we still need to overcome the sins that remain in us (Romans 12-16).