We still largely use the systems we designed from the beginning as we had growth in mind then. 

There are time costs, systems, and marketing costs required for leasing the property AND, if promoted on the MLS, they also offer a shared commission to any licensed Realtor who represents the tenant, so the fee is split between the landlord and tenant brokers.

I have systems in place to self manage remotely, and It’s also doing well.

Everyone I've met at the REIA in San Diego has been extremely helpful and I've heard the same about other cities.You're correct to assume that STRs are more hands-on BUT there's a misconception about how much time they take because most people don't build a team and system to manage them.

My software and system keeps my records accurate-to-the-penny.

Otherwise, if you don't have the correct size system you will end  up with other serious issues like wasted energy, over-working the system, etc.Spend a little more for professionals and save in the end.

Commercial real estate has a class system - why can’t we apply this to residential real estate and locations  

Pre-COVID, I had formed basically a ‘franchise’ of my business by creating a system and process that I could apply in multiple markets.

Every city has it's different system but taxation is the easy way to get the adress of the owners.

We estimate the After Repair Value as follows:We find the similar properties that have sold within the last 6 monthsThe properties must be in the same community and within a one mile radiusThe properties must be updated and/or renovated (If we're going for rental quality we'll look for properties that look like rental quality If we're going for condo quality we'll look for condo quality)The room count, bedroom & baths, must be similar (we'll make adjustments up and down if they are not similar)The square footage must be similar (We'll make adjustments if the difference in square footage is too large)We'll look for a minimum of 5 similar properties- We use 5 because when we have to challenge an appraisal they ask for 5 properties as part of the challenge)We use the MLS & a system called REMINE to find the similar properties.