According to the lease document (the owner used a generic lease agreement form), subletting is not allowed without Landlord's prior written consent.

Condemnation is the process by which a government takes private property for public use with or without the owner’s consent.

http://law.scu.edu/site/gary-neustadter/contracts-2012-13/main/cases/SaewitzUnilateral.htmlAn installment sale or note is a bilateral contract, you can NOT assign the obligation of one party to finance and place another party in place of the other party without consent.

They are doing this with their own stuff and that of the properties they manage (with owners consent of course) and make money doing repairs and on the increased rents.

If a tenant remains in possession without the landlord’s consent after expiration of the term of the rental agreement or its termination, the landlord may bring an action for possession and for rent and the landlord may also recover his or her actual damages.

For those homeowners that do not want to negotiate on their own they can have a third party negotiate on their behalf, with written consent.

To Simplify such authorizations use a purchase cut off amount for a member to transact business up to a certain dollar amount (like $500.00) without consent of all members.

In such an arrangement, the trustee cannot take any action without the written consent of all the beneficiaries.It's a little like you and I making a bet on the Super Bowl.

In the promise to purchase form of the association of realtors and real estate brokers of quebec there is a clause that says this contract cannot be assigned without the writen consent of both parties, meaning buyer and seller.

If there is ample time to inform the lender and get consent then that seems like the prudent thing to do.