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If you have questions about how your taxes were prepared, and going back to your preparer isn't your preference, going to another preparer is a good choice.
Several of the nationwide tax preparation firms offer a review of previously prepared returns, and the fee should not be as high as a tax consulting firm. We can't recommend an expert, but finding an office that's open this time of year should be your only difficulty.
The services should be more reasonable, and you will get the peace of mind you are looking for.
Thanks for asking for our help. If you need anything further, please ask. Leaving positive feedback closes out your question, and you can tell management if you were satisfied with my answer today.