This would fall under your marketing plan to make the house attractive for resale. 

He told me that the Roi(on paper)   in here is pretty attractive compared to his country, and if the business is doing well, he might refer about this to his friends.

A flip is also a great option with little money because if you have a good enough deal then it will be easier to attract partners or private money lenders.  

So now I am gun shy and do not want to get another bad tenant in, but I feel like the tenants my houses will attract probably will not meet all of my criteria.  

Rental income - You can use craigslist, rentometer, trulia/zillow to help find market rates for rental incomeExpenses - You can start with the 50% rule and if the deal looks attractive enough you can start to dig around a bit more to fill the gaps

I want to know how to attract private money lenders to help me complete these deals.

It is important to understand that ALL investment markets are cyclical and go up and down over time.Based on the concept of markets being cyclical I would suggest researching the markets that appear attractive to you based on your investment capital and looking for ones that are at the low end of their cycle.

From a personal finance and real estate perspective, Seattle is a very attractive place.Looking back at history, prices are higher than the last peak that had  a bubble.. so will the bubble burst this time around?!  

After an initial conversation, if the person is interested, I email copies of the application and acceptance criteria.To avoid vacancy and attract people who plan ahead, I always advertise well before the current tenants are moving out -- up to 60 days ahead.

They then kept me in the loop whenever something came on the market that was attractive and aligned with my investment criteria.