They bring me additional deals that I can sell to my investor clients, and I can scout opportunities for myself as well. 

Those who took the advice by stopping paying their mortgage ended up lost their homes by having no opportunity for short sale.

In my market contractors are dying for the opportunity to earn business.

I would really appreciate any help, I am trying to be as prepared as possible for when the right opportunity presents itself.Thanks, 
Harrison Freeman

I have the opportunity to move this business loan to a private loan which is a 30yr fixed at 4.375%.

(They wouldn't approve a leave but were more than happy to have me back and my boss literally told me not to pass up the opportunity but for corporate reasons would not be able to accept the leave) So question is do you think a bank would lend to me and if not what sort of deals do private lenders offer ? 

If you are finding 23% CoC then I would recalculate your numbers just to make sure and if it is still correct, run and jump at that opportunity!

Income is strong, but there is opportunity to improve upon the current rent role with a few thousand invested in a basic clean up.At the risk of sounding like a total newby... 

I have the opportunity to buy a small 1100sf house used as an office.

I see an opportunity to buy land which is relatively inexpensive in the big city markets, build something and make a fairly good profit margin (30% to 50% if not more than I put into it).