You can have multiple accounts, but the combined IRA and Roth IRA contributions for a tax year can't exceed the contribution limits for that year.Here's how the IRS puts it in Publication 590, Individual Retirement Accounts:Roth IRAs and traditional IRAs.
I am not sure how much, if at all, your FICO score will increase when the judgments fall off your credit report. Although not very common, under certain circumstances a judgment that has fallen off your credit report after 7 years can reappear. In addition to the 7-year credit reporting time period (CRTP), judgments also have a statute of limitations (SOL) on enforcement of the judgment.
I agree that the judgment stays on your record until it is removed. Most people don't realize that your credit report does not clear itself. You must be retroactive and make sure your credit is in good clean condition.