There's a lot of bad information available online and its not prudent to rely on most of what you read.

Unfortunately, I don't think it's realistic that you will find a generic commercial lease online that checks all the compliance boxes for your state, city, and county.There are limited service property managers that will do retail tenant placement (rather than full property management, which it seems like would be overkill for this one commercial unit you manage), and this would be included as part of that basket of services.You could also hire a lawyer, but I think that property management company will be more cost effective. 

Since you already have a property in mind, connecting with experienced investors who’ve done subto deals could really help you navigate the process. 

Keep in mind that 95% of first-time flippers LOSE money on their first couple of deals.

Since you mentioned investing out of state, I'm assuming you're asking about getting a partner online, or at least not a friend/acquaintance.

People will hear podcasts online about how a 25 year old investor bought 65 billion properties in one week and think that they have to do the same thing. 

I use Quickbooks online for the formal accounting so it's easy for my tax guy to get in there and do his piece every year, since I have an LLC per building.

There are a plethora of resources out there for your needs: Zillow, AppFolio, and Buildium come to mind as options that include tenant screening.

I'm not sure what you'd learn that you can't find online.

As an extra level of protection You could try and save up a few months of what the potential mortgage will be to give you peace of mind.