Which is the smarter option to take financially in long term, buying a new construction or resale house as a primary residence?

We have been contemplating our strategy to start our business by having my sister buy her first home locally here in Connecticut, a duplex as her primary residence and live in one unit with our mother, while renting out the other unit to a resident, and be able to also rent out her single-family house as a short term/midterm rental to traveling nursers/working professionals on furnish finder.

In the next couple of years I will look at whether the long-term appreciation approach is practical.

Trying to keep it as long term rental, I'm getting 5/1 arm starting at 7.4, also 75% interest only 6.8%.. what would be the best deal to get out of the HM?

This is one we just got entitled for 35 door and its in an opportunity zone so it has some great long term tax benefits. new 35 door townhome community possible BTR 

Any secured loan is fine as long as we have the documentation.

If you're coming back to SD and want to live in the home you have here for the long haul, it's nice security to pay it down.

Investment Info:

Single-family residence buy & hold investment.

Purchase price: $583,000

Cash invested: $35,000

Denver STR airbnb.com/h/cute-denver-5bd

If they continue to smoke in the apartment, you have grounds to file for eviction due to them breaking the terms of the lease.

I’ve sold 13 properties on terms.