Stack cash & build credit. 

Have you leveraged lines of credit, private lenders, portfolio loans, or other creative financing options?

i set strict qualifications for my rental 3x income credit score of 700. 

Once we had the home inspection I was able to have the seller credit us at closing $8k...of which the escrow could not credit the entire amount and so I had the seller write up a personal check for $2000 How did you finance this deal?

You can pre-screen them for free, then run the credit/criminal background only for those that pass your initial review so you're not wasting time.

Given your credit score and ability to fund 25% of the purchase I don't foresee any obstacles you will face. 

For example, I mention that every adult must pay a $30 application fee, pass my credit/criminal background, make a combined income of 3x the rent, and whether or not the property accepts pets.

So for example, a 761 credit score will be in the 760-779 credit category, then going down to 740-759 and so on.2.

One of the benefits is that being on the loan can help build his credit, which will be valuable for his future financial goals.

I want to find a way to get a revolving line of credit, or hard mony loan for this trailer house w 4 acres above.