Everything that I’ve read up until now points to this being a potential opportunity but I am unsure of what the next best move for me is.Can anyone recommend to me specific blog posts or books/chapters I can research before engaging this potential seller?

Have you engaged with the management company?

Protect yourself and have a buddy with you whenever you engage in conversations with these tenants.

We have engaged 21 Mortgage and are in the process of registering for the CASH Program.  

Also, engaging a mortgage broker now will also allow you time to fix any blemishes on your credit. 

You do not need to engage in every tenant request.

https://leg.colorado.gov/committees/business-affairs-labor/2019-regular-session

Those that make a living from dealing with or representing the poor, tenant organisations and other interest groupes have engaged powerful lobby groups that target air head socialist politicians to control government decisions.

There's no need to discuss it with them or engage in debates.

Page 4 of the pdf.https://www.ftb.ca.gov/forms/2018/18_568bk.pdfDoing Business – A taxpayer is doing business if it actively engages in any transaction for the purpose of financial or pecuniary gain or profit in California or if any of the following conditions are satisfied:The taxpayer is organized or commercially domiciled in California.The sales as defined in R&TC Section 25120(e) or (f), of the taxpayer in California, including sales by the taxpayer’s agents and independent contractors, exceed the lesser of $583,867 or 25% of the taxpayer’s total sales.The real property and tangible personal property of the taxpayer in California exceed the lesser of $58,387 or 25% of the taxpayer’s total real property and tangible personal property.The amount paid in California by the taxpayer for compensation, as defined in R&TC Section 25120(c), exceeds the lesser of $58,387 or 25% of the total compensation paid by the taxpayer.In determining the amount of the taxpayer’s sales, property, and payroll for doing business purposes, include the taxpayer’s pro rata share of amounts from partnerships and S corporations.