I would wait until you at least have reviewed all the DD documents, but better yet would be to wait until you have walked 100% of the units. 2.

Does anybody use neighborhood scout when doing online research of an area while looking for rental properties?

Placing tenants is a THING, meaning posting online, showing this space to potential tenants, getting a ton of time-wasting texts, and then all the other activities pre/post tenant placement. 

I'm using cozy.co so it is all online. 

I was reading reviews on this type with the click lock and some had issues with the locking mechanism giving and some planks lifting after it was installed.

Vacasa also has an online tool that you can use to run numbers. 

Assuming you don't live in one of the units, you'll likely only be able to go up to a 75% LTV on a MF.... or at least that's all I've been able to find while talking to lenders and researching online.

I use an online property management tool to manage it that I have found to be helpful.

It's also good to have a real estate lawyer draft and review/advise you on the purchase agreement before submitting it to the title/escrow company. 

You had to pay $99 a month to have access to the office and some online platforms.