You definitely want a legal agreement that's forecloseable, getting as much front money as possible so that you're not just in a lurch with nothing if/when they default, and you should get better interest terms for "being the bank" AND I would qualify the buyer just the same as if they had to go to a bank, because you want to know who your partner is in this deal.

Interest rates and cap rates are definitely correlated.

I'm having a hard time finding any estimating tools for this kind of a project, adding a story and multiple BR/1 BA, and wondered if there were any tools, sites or recommendations any of you have for this kind of a project. 

However, I'd definitely appreciate opening the conversation on the BP forums!

So supposedly section 8 per a property owner would have you stuffing wool in any and all holes of a rented property, I wonder what HUD would have to say?  

Quote from @Joseph Bushnell: I'm testing out the idea of building a data center and I was wondering if anybody has heard of owning the building and having a third party operate the data center itself.  

There are definitely multiple options and some will allow for a set amount of personal transactions per year to waive commission splits.

Welcome to BiggerPockets, It’s a wonderful space for learning and growing in real estate investing.

I definitely need to be below 850k.

If you have facilities on-property, definitely have them use those.