It’s highly unlikely any lawsuit will go so far as piercing your limited veil protections.However, it’s the simplest of downloadable loan template forms to simply document the parties, the amount, terms, duration etc.  

OR download from https://www.biggerpockets.com/files/user/CosIorg/file/asspro-cya-diagram-v6a-solo-401k

Also, I have downloaded a general lease agreement from Brandon Turner and it looks really good.

Download, print, wet ink sign and submit.

Download, print, wet ink sign and submit.

Download, print, wet ink sign and submit.

Hey I know its not on topic but your spreadsheet looks awesome, very aesthetically pleasing and clear. is it downloadable somewhere?

Now that I'm a proud owner of my first single family home, I was thinking of paying them to download copies of their lease agreements for use on my own homes that I was planning on renting out.

Download, print, wet ink sign and submit.

Download, print, wet ink sign and submit.