Definitely talk to a financial advisor. We are in economically uncertain times at the moment - it'll probably be a bit rocky for the next 2-4 years before things stabilise. You need to think about things like - whether a ppty bought at this time will *really* hold its value in a shrinking economy, whether the tenants are going to be able to sustain paying the amount you are thinking of (and whether you can "wear" several months of a tenant defaulting on their rent, or several months of ppty vacancy - which can happen), and also you need to factor in the costs associated with maintaining a ppty over a period of time - everything from replacing water heaters to fixing fences and repainting etc as the ppty ages.

Another thing to think about is - the possibility of purchasing an ex-govvie house (from Defence Housing Authority or similar). They have ppties for sale with a set lease-back period, it means your income over that time is guaranteed and they also maintain the ppty to a higher standard before handing it back to you than in the average rental scenario where you pay for everything.