Simple, short and important. Go.
Notarial certification is not mandatory, however, if you plan to make a residence permit, then such certification will be required by the migration service. Written form is required.
To the owner! If you plan to rent an apartment for 1 year, indicate the period of residence, if you plan to extend the period of residence after 1 year, draw up a new contract, do not be lazy and draw up a new contract with a new one-year term. If you leave the agreement as it is, this does not mean that it will continue to operate for another year as well.
The deposit cannot exceed 3 times the rent. It must be returned at the expiration of the lease, subject to the conditions for its collection (no damage to property, for example).
Only the court can forcibly force to pay an amount higher than that provided for in the contract.
The tenant's rights are protected better than the owner's rights.
If it became difficult for you to evict the tenant, and he attracted all his “Turkish acquaintances” to help him, keep in mind the following: you sent a written notification to the tenant that you are going to live in the apartment yourself and on this basis demand to vacate the apartment, then in this case, this apartment should be the only residence on the territory of the Turkish Republic.
