It is not unheard of to get seller credits for repairs.  

Its not unheard of for an agent to request the buyer cover the difference between the commission stated in the MLS and what they want to get paid, however in my opinion, only agents or teams who really provide a high level of service deserve to charge extra to a buyer.  

For example, an agent I talked to in Raleigh, NC said that 50% is unheard of and that he is happy when he finds properties selling for 85% of move-in ready properties. 

That's unheard of...I need advice of someone more familiar with tax and business laws than me.I have plans and building expertise, my grandfather would invest the capital for me to do this.

Depending upon how much they want to fight, @Faun Kime, it can take a while to get them out and one to six months would not be unheard of.Without other info, from what you write you could pretty much assume the home is already trashed and will need a full gut rehab.

Wow, to have a 5 year rental lease is virtually unheard of (at least to me).  

Howard, A 16% return is almost unheard of these days.

The home is listed and the agent called me because it’s been on the market for 90days, which is almost unheard of right now.

A $60k all-in property that yields $1200/mo is unheard of these days.

Ditto what @Carlos Pelegrina said @Zach Adamson-  Not many brokerages support both and for those agents who join under eXp Commercial, they receive an 80/20 split with $20K cap which is unheard of in the industry!