I am a business/tax lawyer and have no clue as to the answer to your specific question about right to relocate -- but it is intriguing to say the least. What I have done, however, is add multiple categories that I think an answer could be obtained from an avvo lawyer who would be experienced in real estate and/or Landlord Tenant matters. the question that comes to me is do you have a duty to protect another's property (arguably the town because of creditor status) because it is a municipality or can you consider the town to be trespassing on your property to the extent the mobile home is essentially their property at this stage. Perhaps the answer may be that you give notice to the town to remove their property and give them an appropriate timeframe with the message that if they do not remove the mobile home then you will do whatever you please as you have no duties (ergo my thought on similar parallels to what landlords must encounter when a tenant vacates and leaves their property behind).
My answer is not intended to be giving legal advice and this topic can be a complex area where the advice of a licensed attorney in your State should be obtained.