State tax filing

Yes, you are exactly correct in your understanding between the wash sale rules for IRS and Pennsylvania (PA). Keep in mind you must track this cost basis for federal and remember you no longer have a cost basis to use for this wash sale when you do your PA return next year.  

Again you are correct, that pensions when taken at retirement are not taxable.  You must make the correct selection in your PA return when you reach the screen 'What kind of retirement income do you have from Pennsylvania?'. Select the dropdown and choose 'I'm eligible, plan's eligible (no PA tax)' (see the image below).