Allen Buchanan: 5 situations that can make a sublease unmarketable

I recently wrote about the Yin and Yang of subleases wherein I discussed the elements that make a sublease risky and non-beneficial to the owner and occupant of a building – “because subleases are generally unfavorable to the original occupant (sub-landlord) and owner (master landlord), risky, and complicated.”
Also discussed was a definition of a sublease: What is a sublease? When a tenant must relieve himself of a lease obligation prior to the expiration of the lease, the nee