If the subject property is in a neighborhood, it needs to be uniquely positioned so it has no direct neighbors adjacent with nice, unobstructed views from the backyard.

It would be amazing for a lot of this to be automated in some way so many if not all transactions are sent to a document/app all in one place for easy organization for taxes.Does anyone have someone they can recommend?

It seems like a niche market to wholesale (not you typical rental or flip) as well as a unique area (away from a major city) so I wasn't sure where to look for people to be on my buyer's list.

NJ is a unique market in terms of analyzing house hacks.   

What types of unique properties do you own or are building that could benefit from an engineered cost segregation study?

While many of these also apply to single-family houses, a few of the costs of owning a duplex are unique to this asset class:Down payment.

We will take pics of any damage as well.What do you use to take the video and organize it? 

In our case, we have an empty lot that gets a lot of our mail.Just use something generic and meaningless like Transworld Amalgamated International Acceptances, LLC.Note too that even if organized out of state, you will pay a minimum $800 franchise fee to CA for each LLC as well as a tax return in both states.

@Jon Huber organizes a networking event on Saturdays up in your area...You should check it out.

Overall, only for organization at the moment.