If so, hire an attorney and first have them send a letter explaining that you will be forced to take legal action if he doesn't pay.  

Professionals with decades of experience and very impressive track records do all the heavy lifting for you.

This is a great place to meet and connect with investors and professionals.

There are legitimate transactional lender already out there just google it, there a few I'd shy away from due to lack of professionalism, but there's a few that are easy to Work with.

I am fortunate  enough to know several people that are professional investors and are willing to spend some time mentoring and giving me experienced advice.

Hey Jeff, I'm a former license tax professional, Im not taking on any new clients but I can give you a recommendation if you private message me.  

Of course, if it were legit, I would do all the due diligence necessary and consult all the proper professionals.

There's no way I could afford an investment property here (like Erin S. above, I live in Bay Area where property values are ridiculously high), so I recently bought a duplex in Milwaukee, in a neighborhood I used to live in/am very familiar with, and will hire a local property manager.  

Her call should have been more professional and simply say that she was the agent on contract for the property and  I must go through her.

We've pushed prices HIGH with this method, simply because agents like to bring properties to their investors in exchange for the listing post-flip.Another, more target approach, is hiring a few outbound call agents to cold call investors and put together their buying criteria.