If you're choosing between such a wide variety of available investments, the most important criteria is choose the type of investment that suits your business goals.

Always remember that this is a business relationship.

These assets perform the exact same way in every market in the US. 

Be aware that not all of the companies have the qualifications to perform these studies.

Perform the same task in each app to ensure a fair comparison.Load a property with pictures and details.Market that property.See what your marketing looks like from the public's perspective.Submit a fake application to see how easy the process is.Run a credit/screening report on yourself.Enter a maintenance request, assign a vendor, and attach a fake invoice.Enter charges to the tenant's ledger.Enter recurring charges and automatic late fees.Sign documents electronically.Run owner reports.After testing a few apps, one should clearly stand out.

And you need more money, if you are not busy at work.

What business structure is your gas station in (LLC, S-Corp, etc)?

Maybe call the neighboring business to see if the PM still has the doors open.

I'm interested to start a real estate business investment 

I Invest here and surrounding areas and also in Florida, but none of them perform as well as Lackawanna County.I'm AWFUL at checking BP regularly (hence while I'm just seeing this, I'm so sorry!)