Agreement form free rental is a rental agreement or lease agreement between tenant and landlord without the actual signing of a paper or document. Here are a few frequently asked questions and their answers on this topic:

How do people formalize agreement form free rentals?

Answer: When a landlord and tenant decide to have an agreement form free rental, they usually decide the terms verbally. This is a highly unreliable way of making an agreement regarding the renting of a property.
What is wrong with an agreement form free rental?

Answer: While there is nothing illegal about an agreement form free rental, it is definitely unreliable. This is because no court will uphold a verbal agreement without formal proof.
How can I ensure that the agreement form free rental is accepted by a court of law?

While this differs from state to state, most states accept a verbal rental agreement made in the presence of at least three witnesses. You should ensure that all the witnesses are free agents and that none of them are related to, employed by or under the influence of either party.
Why is a paper agreement better than an agreement form free rental?

Paper agreements are formal. Each party has a copy and they can refer back to them long after the agreement is signed. Paper agreements can be shown to court officials and can be reproduced too. If your landlord is not behaving according to the agreement, you can show him the clause which he is not upholding.