The risk is that someone offers them asking price which is not uncommon around here on distressed properties in decent neighborhoods.

So, that's not uncommon, ok.So, since they haven't officially accepted my offer, this means that I can withdraw, change the offer price or add language, etc.

It seems like this story is not all too uncommon in some form.

It is uncommon for realtors to not allow syndicates to list homes, free advertising.

In some parts of the country, I imagine it's not to uncommon to see properties like this.

Its not uncommon for Section 8 tenants to not pay their co pay.. frustrating I know but what are you going to do evict them over 50 bucks ?? 

If I assign it before they are gone it should be a small thing for the end buyer to file an eviction and get rid of them.This is not that uncommon of a situation.

Some of these different issues may not be common in your area and others may be the norm, so understanding what is common in your area as well as what materials or practices were common or uncommon with different ages of property will help you begin to narrow down what properties you want to target.

I realize banks are more careful now post-bubble but I have done a bit of research and it appears that banks uncommonly appraise homes for less than what they sell for, and usually above.

But in PA, it's not uncommon for the tenant and landlord heavily negotiate each lease based on the circumstances when it involves a large commercial property.