There are a million factors here. 

Our plan is:-Increase social media posts about what we're doing (operations and acquisitions) on Instagram, Facebook and Youtube-Go to real estate meetups (not sure about which ones) and just expose people to what we're doing/get them following our social media Anything else anyone would recommend? 

Definitely, have only one kitchenThe second meter is a factor if you are attempting to represent a portion of the property as an ADU.

BTW, we love this market because we've got a major university a few blocks away, Fortune 500 employers in the area and other factors which drive constant rental demand.

Payments that you make normally fall into one of 3 buckets100% of the payment can be factored in somewhere on the returnPartial payment can be factored somewhere on the return0% of the payment can be factored in somewhere on the returnHouse-hacking also has considerable tax implications in the event that you want to sell this property.You can potentially defer a portion or all of the gain on the investment property with 1031 exclusion.You can potentially exclude a portion or all of the gain on the personal residence with section 121 exclusion

It depends on a few factors IMO in which route you take.

I think with all of them, the biggest factor is making sure expectations are set correctly and that your FIL is able and willing to lose his entire investment is things go wrong.  

Getting over the fear factor was the first step.

I'll factor that into my analysis going forward!

Has anyone ever done a structure like that or any other ideas how to not be exposed to capital gain taxation on the sale of his portfolio?