This negative equity position will consume the initial cash flow. 

Not much 4 units come on the market that is turn key.  

It's not like we're talking about a "free market" here.

I suspect the jobs market and economic data is going to come to light after the election which will show the economy is not as good as we thought and potentially provide a little more relief on interest rates.

They're in every market. 

If there are excess funds after paying the local/school real estate tax bill, the remainder can go to:Current real estate taxesCurrent Muncipal liens for water/sewer or any other bill initiated by the municipalityState Liens, usually for outstanding state taxes, sometimes employee/employer taxesPA State Inheritance Tax which applies to all deceased owners and starts at dollar one with no exemptions, unlike the Federal Estate Tax. 

We have been long term owners for many years and have recently decided to make the move to medium term on 1/2 of our duplex to test the market.

Purchase price: $127,000 Cash invested: $20,000 Off market deal from a relationship when tenet left aesthetically rehabbed the house and is now cash flowing rental.

I was thinking about an strategy of doing Cash Out Refinicing putting that money in the stock market (distributed in ETF and some "safer" stocks) to get around a 6% anual return (estimating that low because is the "standard" average, however my current stock portafolio has a cummulative return of 66% in the last 4 years).

Then you can use content tools and SEO tools from carrot to extend your website into new markets.