Do I need a contract with the new landlord to hand over new cheques?

Dear Sir/Madam,

My rental contract ends in November 2023, but my landlord has sold the apartment. Also, she sent me a notice in November 2022 to vacate in November 2023.

My questions are:

- Do I need to have a contract with the new landlord to hand over new cheques to him? Or a written document at least? He is asking me just to give him the cheques.

- If he does not wish to renew my contract in November 2023, when and how shall he communicate that to me?

Note: my current rental contract is not in Ejari as the previous landlord didn't register it, but it was created through a typing center as per the recommendation of the Dubai Land Department and signed by her.