I once worked for a company that went into liquidation
What happened is the directors decided to place the firm into administration while they try to find a buyer (this is preferable to full liquidation)
A firm of very expensive accountants will run the business for a period of time while a buyer is sought
The administrators are there to run the business for a short time until a buyer is found
During this time all debtors are listed, in this instance people like the VAT office and tax office are top of the pile
Should a buyer be found then the usual due diligence will be done and who knows what that might uncover
Should no buyer be found then the firm will be liquidated
Once the extent of the companies assets is known and the companies debts are known an offer of £x penny per pound will be made to the debtors and this can be either accepted or declined.
The firm of very expensive accountants wil be working to recover as much money as possible for the creditors (and to pay there fee), the big asset here is clearly the marina business and cash from moorers, the value of this will vary greatly on what if any agreement can be made with CRT with regards to the access fee etc
In this instance and given the protracted history I think a take over by an established marina company could be the best way forward for all concerned