We walked away from a new build last fall because we could already see issues and the sellers ended up getting us a pre-inspection report that said there were serious issues with drainage and foundation.

But I do have an issue with asking some of these pre-existing cabin owners to have to retrofit their cabin with the system and expecting them to have it done in a year or something. 

And more like 270 to 300 for pre-existing.

I do see pre-foreclosures, pre-probates, and tax delinquencies.

That said, my last Booking.com guest a couple of weeks ago was a bit difficult pre-arrival but ended up being a great guest and left a 10 star review (no comments though).  

Are these loans that I could get pre-qualified for?

If you plan on buying these properties using a mortgage its also best to begin the pre approval process and work with an investor friendly lender to help guide and educate you what the best product might be for your projects to make sure you dont already max out your borrowing power after the first deal.

Main questions should ask about the seller's:- Reasons/Motivations for wanting to sell- Desired timeline to close- Plan's after selling (relocation, reinvesting proceeds, 1031 exchange, etc)- Back-up plan in case they are unable to sell within the desired timeline- Reasons for not already selling to/with a investor or RealtorAdditional questions will depend on the type of seller lead i.e. pre-foreclosure, probate, fsbo, absentee owner, etc.Here is an example of a youtube search you can use to begin finding call recordings.There are 1,000s and you'll find that the best/most effective ones don't even sound like sales calls.

We are in pre-development, and getting a clear picture of these initial soft costs has not been straightforward so I greatly appreciate the information.

You bet, but not active or pre-foreclosure.