Given my background in construction I think it makes sense for me to buy homes that need more work.

Should I also run the credit report and background check on the co-signers?

I have a background in lending, have been a Realtor for 25 years, understand creative financing really well...however in all of my asking about this I have not yet found anyone that has successfully closed a subto in a fully legit way. 

for $40 it only gives a "rating" and no specifics.is there a service of reasonable cost that actually give me a credit report and details on results of background checks?

Not knowing your background in residential, typically if you get into $1mm+ loan balances, you can find non-recourse Fannie or Freddie loans.Like anything, there is risk in investing in something new.

Do I move forward with them filling out the application before I've even closed on the property, along with paying for the credit/criminal/background check and sending them the Estoppel Certificate?

I am living proof that you can invest in turnkey without a background in real estate investment.

We are excited and eager to do things right, and we are willing to take reasonable risks.Some background: First I was a musician (two degrees), and now I'm an actuary (career switch when the pandemic started).

Most home inspectors with a construction background will do this.

I'm Edward Barrios, bringing a background in real estate, property management, and sales to the table.