Search all entities with specific property and their entries

I'm using EF Code First but my models have NO relationships (PKs - FKs). So I'm trying to find a way to workaround it by using EF6 Reflections in order to avoid an entry deletion that would have relationships (same property name).

• Lookup over all my context entities in which has any specific property (FK);

• For every entity found, check if this entity has any entry;

• If its true, instead of deleting my entry, set a property "Canceled" as true;

• If its false, keep entity state deleted and save my context changes;

  var deletedProperty = myEntity.OriginalValues.PropertyNames.Where(p=> myEntity.Property(p).Name == "Deleted").FirstOrDefault();
  if (deletedProperty != null)
  {
       myEntity.State = EntityState.Modified;
       myEntity.CurrentValues[deletedProperty] = true;
  }