Buying industrial Property inlcuding shell Company

Hello everyone,
i am planing to buy a property which is owned by a shell company, The seller suggested to buy including company to avoid GOV stamp duty ,i have below concern,i will very highly appreciate if anyone give me good advise

1; if suppose buying industrial property including shell company,how much will be the stamp duty?
2:how much will be the cost annually to maintain the shell company with Property
3:how much will be the lawyer fee to complete the transaction
4:how much will be the accountant fee related to shell company ( if necessary in buying selling property with company)
5:if property is used by same shell company and have no rental income,is there any government tax on property

looking forward to early response

It's great idea to buy commercial property using shell company. Stamp Duty is much less than usual you would pay on property transaction. You would only be paying duty on share company transfers in your name. Only make sure that you have to do thorough research & due diligence of shell company. Maintaining shell company is not that expensive. Under HKD 10K annual.

Andrew can you tell me how much will be the cost of lawyer, accountant, if buying shell company including property