I then test and create my own seo methodologies satisfying those reasons and more.  

He is also doing weekly rentals and furnished apartments, with this property it will be too management intensive for such a small complex.

@Spencer Faulkner There are a number of ways to market your business on and offline, if you are low on budget it will be better to network in person or give up some of your time to blog, but these really are time consuming options.If you have a marketing budget (doesn't have to be massive) you can make more progress quicker but still have your time to manage the business.Look into ad platforms like, facebook/instagram, reddit and you tube for best value/effectiveness.Facebook - you can create a range of different creatives that appeal to your demographic - FB has very targeted placement options eliminating wasted ad budgets.Instagram - same targeting as FB but you also have the option to buy influences in your niche.Reddit - needs a lot of testing to get established but easy to find groups of people that match your target audience   You tube - create a short video and put it in front of the YT videos that your audience is watching 

Weight Score (1-5)TotalMarket growth631830Scale (unit count)431220Utilities (public vs private)41420Demand (affordability gap) 631830Rent upside642430Property age431220Deferred maintenance/capital intensive upgrades431220Tenant quality452020Current Market Strength631830138220Score62.73%

If you understand the concepts at a deeper level than the books/lectures themselves, you'll feel more confident and fare better during the test. 

Like @Morgan Klein said you need a test to see if it is and then a removal after. 

Does anyone know about grant money available to owners of contaminated property used for testing a remediation?

Another benefit of having the properties nearby would be that you can test out rental rates/amenities and be able to profit on a larger scale when you find what works. 

I'll be taking the CA agent test soon so have started looking at brokers. 

That being said the downsides of management are listed above, it is more turnover intensive than any other single part of the house.