Sure, if it is in a A/B neighborhood where murders are uncommon and the price and everything else about the property was right, why not?

ungrounded systems are not uncommon due to the age of the properties (1900-1910).

So it is not uncommon to have gaps in coverage where there is no product applied, as well as too much overlap and areas that then get twice as much product as intended.

Your privilege and not an uncommon action here. 

It should state the notification period for renewal (yours and the tenant's), it might also include a set rate for the renewal (not uncommon in NNN leases). 

It's not uncommon to look at 50-100 projects before you find the one that closes.

I’d be careful if it is uncommon where you are.

@Mike Dymski that is a great point, unfortunately having worked with many 401k plans, it’s not uncommon for individuals to take a loan from their employer plan and then struggle with paying the loan back which either leads to them taking another loan or turning the loan into a distribution and having to pay the penalty plus a large source of additional income for the year that might alter their tax bracket.

I think $78/mo is a little on the light side, but it's not uncommon.

Trying to squeeze out extra concessions after the fact is LAME (though not uncommon...).That said, you'll have to decide how badly you want to sell - I'd push back.