I’m not sure how much equity you have in each of the 3 properties. And I’m not sure how long you have had each of the properties. If you do have a reasonable amount of equity in the properties one option is to sell one of them and reduce the debt in the other 2. Presently yoou seem to be be far to highly negatively geared for your income. Anyway I would also suggest getting a Property Manager to look after the properties. I have been down a similar path to you. I used to look after our properties and although there was a saving in management costs the dramas we would have with tenants(selecting the wrong ones) was not worth the savings. My wife and I have 5 investment properties in Townsville(inc 2 blocks of 4 flats) and all are managed. Its the only way to go. I would not rush to sell rel estate just to get into shares. With property you should always aim to ACCUMULATE over a period of time. However at the moment in yoyr current situation maybe you should sell one to ease the cash flow problems.
GOOD LUCK