With HSBC Premier you can open an account in Aus, they will then let you open a corresponding account in the US.

I asked the realtor to supply me the contact information of whom she had been corresponding with and copies of those emails.

Auction.com and Xome.com are ok, as is Foreclosure.com, but compared to off-market, you are late to the party on all of these.There are several companies that provide off-market data like Rebo Gateway and List Source, but they really only work the most effectively when paired with a corresponding Yellow Letters (or similar) postcard of letter mailing because there are so many records.

This usually corresponds to the price points of the neighborhoods, though not always.

This typically corresponds with higher competition.

My belief is that if the first correspondence really sits well with them and they feel comfortable I won’t even need the next 3 letters..?

However, after all of that correspondence, they have never heard anything back.Is there some part of the legal system that can help me track down who might have inherited this property? 

Adding another option can be utilizing different lending sources, which correspondingly have different rates depending on your current financial situation. 

So, sellers can also be asked to sign notarized affidavits personally guaranteeing the validity of leases and ledgers.So now, let’s get to the clause to include on your purchase agreement to make sure you get all this information in enough time toreview it.Seller(s) agrees to provide the following to the buyer within X days of buyer’s satisfactory inspection, but in any case at leastX days before closing: All rental leases, rent ledgers, tenant(s) valid phone numbers and email addresses, rental applications& supporting tenant identification, income and asset information, any documents corresponding to any ongoing legalactions pertaining to the property, leases, service contracts, etc., at least three (3) months of the most recent bankstatements for any account(s) rental funds were paid into and any company or corporate tax returns for proof of income andexpenses.

GIS maps are a good start, especially if it include links to the corresponding municipal code/ordinance for allowable uses.