@Seth Tucker It is not clear why you can not find conventional financing.  

If I was to use Conventional financing an thus put 20% down to purchase this property as an Investor . .....

I do some condo rentals (goes against conventional wisdom some with HOA, assessments, etc).

Jumbo mortgages are going to be more sensitive to the rate hike than conventional loans.  

According to what I have read elsewhere, at a couple properties...that is also about the place that conventional lending starts to become more challenging and portfolio lending and private financing options start to be a better fit.

Most banks offer the same rates on conventional financing, so it really only the fees and points that could be different.

Primary properties whether VA, FHA, Conventional 5% all require 12 months to live in them.

Sellers will not be excited about FHA financing as it takes much longer, and in some states, requires an FHA appraisal that is very stringent and will run with the property in perpetuity.Are you considering FHA because you don't have the cash for conventional?

This all assumes that this is a conventional residential mortgage and that you do not have problems qualify for a mortgage.

Most lenders continue to quote 4.0-4.125% on top tier conventional 30yr fixed scenarios.