We don’t need the OTA integration, cleaner communication, or many other functions they offer.  

Is there a garage that could be converted into an ADU or used as additional rental space to neighbors and is the driveway functionally obsolete for more than 1 tenant? 

Once you have a short list, get an account with each one and run them through the wringer to see how they really function.

Its basically a function of the complexity/risk of the engagement and the general skill level of the practitioner.

Redfin has a solid search function to view sfh with guest houses if you click that option. 

I guess I don't know how to make the @xxxxx function work yet.

You're new to being licensed, but it sounds like you don't plan to function as a traditional agent.

If you have a clean and functional property and priced it right, you will find the right tenant.

I used to ask similar question like this before but after quite sometimes I found the car should be divided by its own functionality, so one family is good to have:1. one luxury sedan2. one SUV/4WD for snow travelling3. one truck4. one cheap sedan for commuting  or for each kid.5. one minivan to carry all my bikesI don't know I always lucky to find $5-6k nissan altima in good condition, 120k miles and never go to garage shop. 

If those pumps are functional, you shouldn't have any concerns around flooding.