I have had this issue while being on home wifi and mobile data.

Single Family homes and mobile homes will be my first targets. 

yes, there are a lot of mobile homes here, some in good shape, many getting a bit long in the tooth.

I work full time as a mechanical engineer, and in addition to the little experience I already have being a landlord/doing rehabs, I've been reading as much as I can.

The homes are built on a trailer and are mobile.

I think you are confusing the regulatory liability of a FINRA licensed broker-dealer with the free market's price discovery mechanism.

I guess like your car making a sound and once you get to your mechanic, it stops.

I am a mobile home and tiny living enthusiast!  

I'm comfortable on the job site as a project manager, talking to customers for new sales and issues that arise during construction, and in the office as an estimator, scheduler, and materials coordinator. 15+ years in the medical device industry as a mechanical engineer.

Mobile Homes are owned by the tenants - they lease the lots from us.