Either way, you should always vet a pool of contractors, sprinkle in some referrals as well as cold leads from places like Angies list etc.

@Drew BurseyIf you can form some rapport with the seller through door knocking or cold calling then you can figure out what they need to walk away.

So literally the city/county could stop it cold under your feet (risk of that happening depends on where it is).

Legally press for a partition which would force a court house sale (no body wins but another investor unless I try to buy it myself at auction to get rid of my brothers)2.

His English seems much better than my German, and I think he's just playing games / gotten cold feet, but if I'm going to salvage the deal, I think I need to take the language barrier, and this "I didn't receive that; don't know what you're talking about" game, off the table. 

A few active methods you could start implementing would be cold calling, door knocking, direct-mail, bandit signs and local real estate investor meet ups.

Yes I understand that its cold, miserable out and all the kids are back in school, but whats the data driven decision to take your foot off the gas.

One person might be extremely successful at cold-calling, where another wouldn't be willing to call strangers with a gun to their head. 

Do whatever your team tells you ,cold call, open houses, all of it!

It's not a ton of capital but you'll be hard-pressed to find any bank willing to lend on this small of a park.