I mostly stick with buy and hold which is a much easier (and lucrative) business.If you really want/need to stick with the flipping model, make sure your skills are up to par to tackle things that a casual flipper can't handle.

Currently, I don’t have the funds to tackle this deal alone after buying and fixing up my second 4-plex 2 months ago.

Then you can proceed with the design as needed by the appropriate professional.My advice is do not try to tackle a project like this without using a qualified GC.

Appreciate your advice how to tackle my goals.How do I seek my fullest potential as a Realtor using BP?

One of the challenges I need to tackle, being in the US, is to find a trusted person that will manage my RE interests in Spain effectively.

@James Sun, this is a good problem to tackle as there are a lot of lessons you will learn with either approach.  

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My GC and I have already done a walk thru and made a plan of the things we're tackling first etc.

I am fairly handy and have tackled many renovations and improvements in this and our last home, and we have made a profit on the first home we ever bought and sold (it was the only other home we owned prior to our current home).

Home listed at: $55kAccepted offer at $35kI think it's a tremendous deal, just one that I might not want to tackle myself, but I don't want to lose the advantage of working the buyer down to my accepted offer.