MY sister and I inherited 3 properties upon my Mother''s passing, we have sold two, the other is a rental Industrial, I want it sold, as we do not get

First, for an attorney to properly and appropriately comment on your inquiry, he or she would need to meet with you to review all the relevant circumstances.  Thus, I would suggest meeting with an attorney who can more properly advise you.  Otherwise, below you will find some preliminary guidance. The property is "legally" owned by your and your sister, at least based on the will (which again should be reviewed) and based on what you have related.  The title of the property should be transferred accordingly.  At that juncture, if you and your sister cannot cooperate in either the management and maintenance of the property or agree to sell the property, then an action in partition could be started on your behalf.  Or, prior to initiation of seeking court intervention, an attorney could communicate with your sister and offer her the opportunity to buy your 1/2 interest (for half the appraised value or even a little less than 1/2 if you think that your sister would be more agreeable if she was getting a "good bargain" and which would ultimately save you in legal fees).  If she is agreeable, an agreement should be prepared, money exchanged and a deed and other related and required legal documents should be prepared and recorded, transferring title to your sister alone and paying any applicable transfer taxes. Also, although the facts are not totally clear, any maintenance expenses (such as the cabling etc.) is the responsibility of both you and your sister in proportionate share to your respective interests.     

It appears you and your sister together own the property by virtue of an inheritance and she wants to keep the investment but you want to sell it.  The best solution would be for one of you to buy the other out.  Since you want out, you may be willing to give your sister a bargain price to buy you out.  Then you can get on with your life and there should be no more stress with a family member. If you buy her out, you would then be free to sell the property as you wish.  Again, no family stress. There almost certainly is another solution, but it is likely to do real damage to your relationship with your sister.  The "personal cost" of this solution may be too high for you.  The solution, though, is to file a petition with the local court asking that the property be "sold for division".  Probably all states have some version of this arrangement.  When 2 or more people own property and can't agree on a partitioning or a sale, any one of them can go to court and ask that the court order a public auction of the property and that the net proceeds be divided among the owners.  A public auction also may not bring a very good price.  But either of you can enter bids on the property to keep it from being sold too cheaply.  This can get the job done, but your sister may resent you for doing it.  Make an appointment to see a good real estate attorney in your area to learn more about the procedures, the time that it takes, the cost, etc.