Material participation (there are 7 tests you can use). 

The tests cost about $200 each, licensing per state anywhere from $200-400 a year The test is about the laws and history it does not teach you anything much about the job.

With a "facts and circumstances" test This article can. help: https://www.irs.gov/publications/p523#:~:text=If%20you%20own%20and%20live,factors%20are%20relevant%20as%20well.Please discuss this with your accountant, as your facts and circumstances will matter greatly here! 

Namely, you must be able to show that all of the following are true:you are married and file a joint return for the yeareither you or your spouse meets the ownership testboth you and your spouse meet the use test, andduring the 2-year period ending on the date of the sale, neither you or your spouse excluded gain from the sale of another home.If either spouse does not satisfy all these requirements, the exclusion is figured separately for each spouse as if they were not married.

A true test of a company is not when everything goes right, but when things don't go 100% according to plan & how they handled it.

Unless we note otherwise in the listing information or disclosures, we fix everything that is broken or not functioning properly, but we have had several recent requests that are expensive and I'm interested in your experience in handling things like:- this roof is old and we're worried that we may have to replace it (was inspected by roofer and determined to be functioning properly)- there are screens missing from some of the windows and we would like you to add them- we're concerned about the drainage and would like you to add gutters- the AC unit is old (age disclosed in disclosure docs, was tested by HVAC guy and running fine) So do you budget for this type of concession, do you "meet in the middle" or do something else?  

I passed the state test with no problems, I think Raymond does a good job of teaching.

Change the mailing pieces and A/B test your response rates.

Being a real estate agent is not something you can approach casually and hope to start receiving "capital" if you actually want to make money you have to go balls to the wall and create a full blown business (which is what I'm doing right now, actually still waiting to take my RE test, this is just what I've observed).

WIth your pedigree I can only assume the actual studying and testing process would be a walk on the park.