@Michael Noto, which improvements will you pull permits for? 

That person SHOULD be willing to show you the home, even if you have an agent, but they often get their panties in a bunch having to do extra work that your agent should be doing, so they often refuse. 

I am doing my first house hack next month and I have 2 extra rooms to fill in a single family home. 

Spend a little extra time to increase your curb appeal.3.

This upgrades either stainless steel appliances, expanding rooms, adding extras like coin laundry machine or parking.

I would see if you could pay a little extra to put a cap on the float in years 6-10.

Also, how much extra do you have squirreled away for deposit/rehab costs?

If I do a private loan, would that be an unsecured loan or is there a way after the property is purchased to tie it to this loan so they have extra security?

Also consider increased wear and tear, eg on plumbing with all the extra laundry/washing/little kid bladders etc. 

Dogs, you can charge extra for.