Thank you for posting your question. I have read many similar posts, so your circumstances are not uncommon.
First, the Realtor's number one job is to help you sell your property. In order to do that there are three things that need to be considered:
1. List Price - the purpose of the correct list price is to attract buyers and their Realtors. If a listing has no showings, the list price is too high. If the listing has showings, but no offers, then the price is too high. Collect feedback from the Realtors that showed the property and correct as needed. If the listing is receiving low offers, then the market is speaking to you. You do not mention if you have had ANY offers. Have you?
2. Condition - a properly priced listing will attract showings. A listing that shows well willattract offers. Your Realtor should help you determine your property's biggest values and showcase them.
3. Timing - Time is your number one enemy. The real estate market is dynamic. It is always changing. Now that your property has been listed twice, there is one thing we know: We know what price it well not sell. Most sharp Realtors look at listings with long Days On Market (DOM) and help buyer's make low offers. Not because they are trying to trick you unto selling for less than the property is worth...because THAT'S WHAT IT IS WORTH. It's just over-priced.
Lastly, 90% of the time a buyer first sees the home they buy in person with a Realtor. Offering ABOVE MARKET commission is the most effective way to attract the attention of Realtors.
Lastly, sellers will normally net the most money when the listing sells in the first 30 days. Have ANY homes like yours sold in the last three years? If there are no comps, as you state, then you need to drastically increase the commission and lower the price.
Putting it another way (and I do not know your market), I can tell you that 90% of the time a listing does not sell, it is the price. I could go into virtual tours, marketing tips to add value, etc. Talk with a couple of Realtors and get an assessment. Remember, what you paid for the property, the amount that you owe, or the price you want for it, are not important to the buyer.
Keep us posted.