Why ask: You want to know the mentor’s qualifications, expertise, and track record in the specific area you need help with.

I've used the search feature on this forum but didn't have much luck.Are there any US investors, hard money lenders, or groups that invest in flips outside of the United States, specifically in Europe (Netherlands, Spain, etc.)?

But, you'll need to get with an REI-savvy bookkeeper/firm to help you set it up since it's not an REI-specific software.

Podcasts on the way to and from work, and read a book right before bed, maybe even squeeze a few minutes into browsing some specific topics in the forums.

Specifically, must this be a commercial/business loan type where you have higher rates and shorter loan life or is there an alternative loan type? 

Listen to podcasts, read books, and if you plan to invest in the Netherlands find some resources that speak to that market specifically.

On the site you will find lots of educational videos and networking opportunities he has put together.

Specifically, what qualifies as "flooding" to be disclosed.

@Eric Coats, to answer your specific questions, estimating expenses are pretty simple. 

It would be possible in other ways like a lot of hot client leads but anything other than that will probably be specific to what that agent needs.