I manage a property with multiple retail stores, but I have a grocery store that needs work done on it.

I implore you to do one of two things...1) find a partner that's been there, done that, and bought the tee-shirt so you can learn the ropes with someone who knows the pitfalls or, 2) start with a single-family or duplex with the guidance of someone that knows what they are doing.

You're wasting hours of your time driving and walking around stores looking for the right lights to fit in your project when you should be looking for more deals.2.

The trackball is for arcade games like Golden Tee, bowling games, baseball games, etc.

They make ordering items from different companies easy, and you get discounts from each store that has partnered with them. 

There would potentially be some weight issues with the 2nd+ floors of some shopping malls, depending on what the potential tenant wants to store in the upstairs unit. 

You may want to look at small independent stores.

There are two, one bedroom apartments on the second floor and first floor is currently being used as a convenience store.

They are always leased here even for the corporate stations where they have a convenience store, a Popeyes or the like and a car wash.

Quote from @Fernando Martin-Gullans: Hey y’all, I’m a retail investor with 2 SFH rentals worth a combined ~$650k looking to utilize some of my stored equity to buy more out-of-state properties, but I’m not quite sure how best to proceed given that my interest rates are incredibly low (leaning me away from refinancing) and neither property is owner-occupied (which I believe prevents me from using a HELOC).