My business partner and I just purchased a 6-unit multi-family property and are curious if a cost segregation study would be beneficial and when the depreciation can be applied.

you may find it beneficial to avoid paying lender fees over and over again, on 3 properties though if you go with a lender that doesn't charge a ton of junk fees then you'd save doing it separately. 

I was advised it would be beneficial to have a reason for non-renewal in New Hampshire in the event that the tenant fights it.

Which neighborhoods in SD are you seeing the most beneficial rent to price ratio?

The program is really beneficial, but the assistance comes in the form of a forgivable 2nd mortgage.

Ideally it would be beneficial if this is also in an area that you would have interest in visiting from time to time since it is a good idea to still check on properties in person from time to time.

@Inderpreet Singh  I use Liberty Mutual for my umbrella and have been very happy with them. 

Speed and cost/tax-efficiency are usually mutually exclusive.  

You can't even change a lightbulb.You or your family can't use or live in the property.You can't sell a portion of a property like you can sell portions of stocks, bonds, mutual funds, etc.

I went actually on the street of the city I wanted to invest in and asked people just walking around about the city, what might rent, etc and found this method to be extremely beneficial I met some local real estate agents walking their dogs that gave me great recommendations and leads just because I asked them.The real estate agent son I met the other day has called my phone and is connecting me with a landlord that I really want to get into contact with for his building who already has tenants airbnbing at his location.I also found a Mentor (simply by asking around), which has offered to teach me all their ways, tips, tricks and so on as long as I help them stage, help them move items and so on.