How old are the main mechanical systems HVAC, Water heater, Boiler?

There should be mechanism to minimize duplicate or a question that's not having too much context. 

ESS will auto send emails and text notifications to the tenants, which is a big time saver. 

I would use a software management software that people could pay online or setup auto pay.

I get their auto generated number and match up against the comps provided with the paid subscription. 

If they refuse to pay and you installed what was quoted in a workmanlike manner then you file a mechanics lien on the property.

And guess what, you can over-pay using any purchase mechanism.

Structural, roof, mechanicals, cosmetic? 

Apprenticeship is still the best learning mechanism. 5.

I'm intrigued by actually running the syndication myself assuming I can build out systems and a team that allow me to operate it on "auto-pilot" as much as I can, but as you stated, I was not aware if other strategies have surfaced since I last looked into investing or whether syndication was still a viable option.