I would recommend you really take your time selecting the right software.

I think I would only move 3 of them to software management at first, see how that goes.

Software is a common question on BiggerPockets.

You can keep track of which expense goes to which property through your accounting software (even a spreadsheet would work).  

Are you using any specific software for scraping or gathering off-market leads?

I don't use any 3rd party software. 

If you don't want to use an attorney, you can make an LLC through the secretary of state website https://www.ohiosos.gov/businesses/information-on-starting-a... or other software platforms like zen business and rocket lawyer. 

For an STR they have software to help you determine revenue like pricelabs or Airdna.

If it is your first, you don't need software just yet-- already there will be such a learning curve from how to manage your place and talking to customers.

What software do you use 4.