We hear about these crackdowns periodically, usually it's nothing. That's not to say that there won't be a real one at some point. If you're targeted then it's likely you will have to gift a very large brown envelope.
Your nominee shareholders should be people you actually know and trust who won't admit to being straw men at the first question. Never use nominees suggested by your lawyer.
If you have a home in a company, there are some things you need to do.
For example, in your will, don't leave the house to someone. You don't own it so it's not yours to leave, instead leave the shares in your company to someone. Once your home is in a company, it's very expensive to take it out of the company and close the company. The land office will assess the value and it's going to be higher than when you put it into the company so the company has a tax liability on that profit and after that, closing costs.
You probably have undated forms signed by your nominees and copies of their ID cards. ID cards are valid 7 years only, so you need to get new copies on expiry or your undated forms are useless.
There are ways to own a house in a company legally. The legal test is whether your primary motive for doing it was to circumvent the foreign ownership laws.