/// <summary>
/// Updatees Tenant Details
/// </summary>
/// <param name="userId">The Id of the User</param>
/// <param name="firstName">The new First Name of the Tenant</param>
/// <param name="lastName">The new Last name of the Tenant</param>
/// <param name="dob">The new Date of Birth of the Tenant</param>
/// <param name="phone">The new Phone of the Tenant</param>
/// <returns>Returns an Interface of Teannts</returns>
public ITenant UpdateTenant(string userId, string firstName, string lastName, DateTime dob, string phone)
{
var tenant = _personRegister.UpdateTenant(userId, firstName, lastName, dob, phone);
return(tenant);
}