1. -     Ok, short story.  Mountain Home Ministries is a non-profit that bought an old abandoned church in southern West Virginia.  The old church is being converted into a community center to assist the local residents with GED training, substance abuse quitting, work skills, ect.  A work team came to help with the renovation.  The basement was painted with latex over at the very least 10 year old oil based paint.  The team did very little prep, did not scrape old peeling paint so I am sure they didn't sand the old oil paint.  
1. - Will the latex stay on the wall?
2. - How long till we have an issue with the latex peeling?
3. - How do I get the Latex off the wall?
     Or should I even try?
4. - Would something like Kilz do anything for me?
Thanks in advance for your reply's and may God bless you.