Use online tools like Rent Savvy, Avail, Rent Redi, Apartment.com, Angie, Thumstack.... to manage yourself and learn. 

We had a record breaking online attendance this week, hope to do the same next month:  Top 10 Title Issues Real Estate Investors have to solve with Accurate Title

I paid an estimate of about 25k for each in cash.

I have hundreds of comments on my Facebook page from people who paid for this what I would call a scam and it is awful.

If you truly just want your primary paid off you can just do a cash out refi on your investment, still in your own name, and pay off your primary.

I am not finding much material online or a book to study from.

People don’t get paid a lot for providing a contact information on someone who say is in foreclosure.  

I work for a building materials company now and took their online game from Zero to very engaged in the past few years and it's been really fun.

We have been house hacking in Boise, property to property for the last 5 years - and they all were not break even or positive after we left, and we have paid monthly out of pocket to hold properties. 

You are correct in your assumption that it will impact how low they can go on the down payment, though, b/c commissions will need to be paid out of closing costs.