What is the best avenue to proceed with.

I have somewhat of a tricky situation that I have never been in before and given the moratorium I am not sure how to proceed.

But if your issue will likely involve litigation (which, without knowing what your specific HOA issue is, I'm thinking litigation might be a possibility) you will definitely want a local attorney that will be able to appear in court, depositions, and/or settlement conferences if your issue ever gets to that point.

Here, it is on the clerk of court website, case searches. 

Looking to buy a foreclosure at county auction. Any advise on how this works? I am told to bring money orders in different denominations...What other suggestions?

There is even a court ruling from a few years ago to confirm that.https://caselaw.findlaw.com/pa-superior-court/1879684.html

The proceeds would be used to buy the next property.

As long as the contract is not challenged in court, you may be fine.

You can cash out refinance and hold the cash out proceeds on your books until you find a larger deal you want to purchase. 

But a 1031 into several properties using the proceeds as down payments would greatly increase your depreciable basis.