Note all these require more effort than traditional LTR.  

It's hard to beat the flexibility of Podio, although it does require some time & effort to set it up. 

As for the refi side, DSCRs are an excellent tool to utilize as they are based off the property, not you as the borrower, so no DTI hits / personal income verification required.

That will require somewhere between 10% - 20% down. 

I’d recommend starting with business credit cards that only require a soft inquiry, so you don’t risk a denial from one bank that could influence the others.

This is because VA loans are tied to the borrower’s personal ability to repay and require a creditworthiness review.VA Entitlement Consideration: If you’re assuming a VA loan, the original borrower’s VA entitlement may remain tied to the loan unless you’re a veteran eligible to substitute your own entitlement.2.

The base zoning required 25 feet of frontage and a lot area of 2,250 SF per house.

What if circumstances require a cashier's check instead of a wire, how difficult (or not) is it to order one?

It can be, but it should not be anything close to the reason for purchase or sale.Sloped lots require a lot of regrading to level them which is WAY more expensive than most people think.

I think LLCs are over rated unless you have to hold the property in one for financing like most DSCR lenders will require.