Mapping 1 to 0, 0 to 1

I need to create a mapping between two existing entities, where both are independent.

Then.

I have one DepositoTransferencia entity and the other one is Conta . The idea is that at a given moment, the DepositoTransferencia entity records are only associated in Conta , but at first not. But the Conta records are not necessarily related to DepositoTransferencia .

What will happen at the system level is as follows: a user will register the deposits / transfers and another user will confirm this release, in which he confirms this release, the system has to make the deposit / transfer value available in the account of the user who has registered.

What I did:

[Table("DepositosTransferencias")]
public class DepositoTransferencia : BaseEntity
{
    [Key]
    public Guid DepositoTransferenciaId { get; set; }

    [Required]
    [DisplayName("Conta bancária")]
    public int ContaBancoId { get; set; }

    [ForeignKey(nameof(ContaBancoId))]
    public virtual ContaBanco ContaBanco { get; set; }

    [Required]
    [DisplayName("Número")]
    public string NumeroComprovante { get; set; }

    [DisplayName("Número no extrato")]
    public string NumeroExtrato { get; set; }

    [Required]
    [DisplayName("Data")]
    [DataType(DataType.Date)]
    [DisplayFormat(DataFormatString = "{0:yyyy-MM-dd}", ApplyFormatInEditMode = true)]
    public DateTime DataDocumento { get; set; }

    [DataType(DataType.Currency)]
    [Required]        
    public decimal Valor { get; set; }

    [DisplayName("Data de liberação")]
    public DateTime? DataLiberacao { get; set; }

    [DisplayName("Observação")]
    public string Observacao { get; set; }

    [Required]
    [DisplayName("Tipo")]
    public DepositoTransferenciaTipo Tipo { get; set; }

    [InverseProperty(nameof(DepositoTransferenciaSituacao.DepositoTransferencia))]
    public virtual ICollection<DepositoTransferenciaSituacao> DepositosTransferenciasSituacoes { get; set; }


}

[Table("Contas")]
public partial class Conta
{
    [Key]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public int ContaId { get; set; }
}

[Table("DepositosTransferenciasContas")]
public class DepositoTransferenciaConta
{
    [Key]
    [ForeignKey(nameof(DepositoTransferencia))]
    [Column(Order = 0)]
    [Index(IsUnique = true)]
    public Guid DepositoTransferenciaId { get; set; }

    [Key]
    [ForeignKey(nameof(Conta))]
    [Column(Order = 1)]
    [Index(IsUnique = true)]
    public int ContaId { get; set; }

    public virtual DepositoTransferencia DepositoTransferencia { get; set; }

    public virtual Conta Conta { get; set; }
}

My question is:

• If what I did would be right.
• How would I declare the inverse properties in DepositoTransferencia and Conta
• or what other approach I could use for that.