Yes, Definately.
Verbal agreements are not binding anywhere.
It will be dependent on the type of contract. Some verbal agreements can be enforced.
No, all lease agreements to be binding must be in writing.
No, only written agreements are binding in this situation.
Verbal contracts are not binding on any tangible asset or real property. If this were the case, car salesmen would sue everyone who walked out the door and said they would be back tomorrow to buy. Vehicles are tangible assets. Thus verbal agreements in this matter are not binding. In the sale of a vehicle, there is an exchange of money for the vehicle and title. That's it. The purchase is straight forward.
Technically yes for many things, but only if can be proven to have existed in the first place. There are specific agreements that must be in writing, such as agreements to purchase or sell land, or items for longer than a year.
Verbal agreements involving real property are not valid.
No, California does not honor oral agreements in the court of law.
No. Not Florida, but maybe Texas. A verbal agreement, like a wedding vow would be binding. To "unwind" the verbal agreement will probably require a divorce lawyer.
You cannot verbally modify a written contract. Lawfully a binding legal contract can only be changed using the same medium as the original agreement. (i.e. Verbal contracts can be changed by other verbal agreements). It's not a legally enforceable and binding contractual term if it's not in writing.
verbal contracts are hard to prove, unless it is recorded
none