An experienced broker with lots of choices at the palm of their hand is probably the best bet.

@Colby Burns  Agreed regarding the PM side with them (A member of my spouses family had a horrible experience with them)  Regarding the construction side, I cannot speak to. 

You're best bet is to call a few brokers local to the area and see what they can come up with.It's definitely going to be a surplus or excess carrier that will do it and the premiums will be high. 

@Ernesto Garcia Thats right, i got investment property conventional loan at that rate for a new construction property. 

I have worked with a builder in the past who offered new construction quads for investment in this area.  

They are set to change the zoning in my area, allowing ADU's and other construction.

I have been doing construction my whole life so the work is not something that I am worried about.

Just like doubling down on a bet you could lose it all. 

Hello Mike, It is nearly impossible to answer this question without taking a deep dive on the numbers of each but often times in expensive markets like Seattle the cost of construction is so high that it doesn't make sense to tear it down unless you can build something way bigger/nicer.

Your best bet is to ask for referrals from professionals in the space: realtors, other investors, this forum, FB groups, etc.