Google search will provide the answer.

How did you find this deal and how did you negotiate it?

The reality is the opposite - if it's not in writing then the PMC doesn't have to provide the service or can charge extra for it!

I was also able to find a new tenant within just a few days in both cases using the $29.99 Premium feature (it's less than half of one days rent income).

There is no limit to the number of deals you can do (like there is in IL).I'm not sure about the dry closings (though I doubt they have that right, either), but the fact that they're already giving you bad advice makes me think it's time to find someone else.Title companies vary quite a bit. 

What should be right way to find these investor buyers in the market?

Need more context here to provide assistance 

@Gabriela Tercero I recommend finding some local real estate groups.

Some services only provide positive reporting, so they won't report the delinquency, and many only work with large landlords. 

you can do a hard money style loan where its 50% down on the land and lender provides 100% of construction