I have social security income but pd taxes on properties

What is your question?    Did you only receive one of the stimulus payments?   If so, you can claim the Recovery Rebate for the one you did not receive if you are eligible.   If you file a tax return to claim the credit, report your social security income.   You don't need to enter the taxes you paid on the properties unless you itemize deductions.  

If you do not qualify for the stimulus payments and social security was your only income, you do not need to file a tax return.   For the recovery rebate, you must have a valid for work Social Security number, and you can’t have been claimed as a dependent on someone else’s 2020 tax return.