I doubt you are looking to appoint an official liquidator as this involves applying to the High Court and that process itself can cost over 10k!
The process and the answers to your questions depends on whether the company is solvent or insolvent!
In short if the company is solvent all creditors must be paid up to the date of liuiqdation. I note the post that the company can be reinstate withing 20 years this is not the case, if the company is liquidated it cannot be reinstated after 3 years.
It sounds like your company may actually be solvent but that part of the business as a unit is insolvent! Transferring the profitable business unit out is risky business because it is illegal to do so and this transaction will have to be brought to the attention of the Director of Corporate Enforcement.
However, if the company is insolvent perhaps you should liquidate the company and then consider "buying" the profitable company off the liquidator. There is a potential problem with this idea as the liquidator has to get the best price for all of the assets of the company and therefore will have to offer the business to the public. However, if your profitable business is not likely to attract much interest you are relatively safe and also the liquidator will be looking to do a quick deal and therefore it could illiminate anyone who does not have adequate finance ready to go. But the big problem with this option is that the creditors/suppliers of the profitable company may not want to work with you going forward and this could be a serious problem.
As for your landlord and the question of an audit this will not apply if you look to have the company audited. However, if you are not up to date with your submissions to the Companies Registration Office you will have a black mark against you and this will have to be brought to the attention of the Office of the Director of Corporate Enforcement. But do not worry this is only a small black mark unless it can be shown that your failure to prepare financial statements was a factor in the company ending up in the current situation.
The rates due to the county council are rank as preferential creditors.
the liquidator is required to investigate the company and to establish why it failed and report his/her findings to the ODCE. Unless you have acted in a dishonest manner you have nothing to fear from the liquidators investigation.
As you can see you are into a mine field, by asking a simple question you have gotten more questions back. I recomend that you go to talk to an insolvency practitioner or an insolvency lawyer.
I had a shop out in Tallaght and used
www.ccrs.ie and
www.efc.ie