Steve:
I will attempt to answer your questions as you asked them:
1. Yes, the foreclosing mortgage will be divested (wiped out) by the sheriff’s sale. All other junior liens will also be divested provided that the foreclosing attorney provided those lien holders with proper notice.
2. A junior mortgagee can decide to foreclose, but the foreclosure is subject to the senior, so, yes, the purchaser would be responsible for paying the senior. This is allowed. The fact that the junior and senior are held by the same lender doesn’t really matter.
3. Correct, the AOS will become void once the property is sold at sheriff’s sale. There is always a chance of further postponement. Right now many sales are being postponed because the lender does not want to proceed given the covid-19 situation. Call the foreclosing attorney, they may be able to tell you if they plan on taking the property to sale.
4. IRS liens and State liens must be filed with the prothy in order to be liens on the property. Although there are some exceptions. PA inheritance tax comes to mind.
5. That amount is the county assessed value multiplied by the county’s common level ratio.
6. People do this all the time. However, I would talk to lenders now to make sure they are familiar with what you want to do. Once the deed is recorded you should have insurable title. I do not know any lenders.
I hope this helps. Good luck.