I’ve bought some houses with 0% interest for a year credit cards and a few with consumer lines of credit from banks.

Cards and board games for older kids but they will all have tablets or phones unfortunately. 

I have no debt aside from the properties and regular monthly credit card debt.

Until this point, I had nothing but great experiences with Norada's referrals in other markets, so I put my trust in them here as well.As a veteran, I saved the money for these investments during my time on active duty and while working as a contractor in Afghanistan and Iraq for over five years.

Less than five that we’ve done a contract assignment on. 

Also, the tax benefits you expect might be over-hyped: https://www.biggerpockets.com/forums/51/topics/1075919-five-...Figuring our whether there is a useful tax strategy in your situation would take a one-on-one consultation with an experienced tax strategist, and here is how to find one: https://www.biggerpockets.com/forums/51/topics/1222774-expla... 

TurboTenant offers a maintenance program for $149 annually; they will respond to tenant issues, troubleshoot, assign to a pro, and charge your card on file (unless it's over your set amount, then they will call to confirm).

It will co-exist with other "new" payment methods such as google pay, apple pay and credit card etc, because the target customers are different.

Quote from @Jacklyn Robins: You've "never" had this issue, but you've only managed a few properties for five years.

If that's not in the cards I highly recommend you wait to make this purchase.