Each house needing 30% down before buying another house, not selling or refinancing any of them, not counting equity and never selling, purely renting, and considering they'd each be bought around 350k each.

As I said it is not a mentoring/coaching/pure educational program.

@David Green, What you have is an investment property pure and simple. 

The triplex is rented and bank is selling as-is without no showings of inside of building and have asked not to disturb tenants that's why I was thinking they may entertain a lot less as it's very risky to take on, my estimation on rehab is purely cosmetic and I used it for calculation purposes as I do not know the inside of the property which I think is very risky ...When looking to do the refi on a BRR - particularly a triplex is it best to go with a commercial lender? 

The example below is purely for the ease of a response and not exactly my plan.

The inspection, in this case, would be purely for your benefit.If the loan is coming from the secondary market (FHA, Conventional, etc.) a more thorough appraisal and inspection are usually required.10 days is plenty of time for an inspection.

What you say above is pure gold!!

I am getting only 15 year loans as its important for me to build equity rather than focus on pure cash-flow.

Hello all,Firstly, I am a pure newbie when it comes to investing.   

Yeah I've worked with almost purely STR buyers here in the Branson area.