I've heard on numerous occasions that there are downsides to obtaining your RE license and being an Investor.

@Cynthia Nina-Soto for the detailed explanation of each.

I have a mentor in a former landlord who owns 10 properties and manages them himself now that he's retired.I think to start it would be best to invest using a house hacking method, and then once I am established and comfortable enough, to do a home flip or invest in a property using the BRRRR method.My short-term goal is to purchase a 2-4 unit property where I "house hack" and live for free or almost free, while saving roughly $1k a month towards a down payment on a 2nd multi-unit property within 24 months.My long-term goal is to own and invest in numerous properties (purchasing one new property every 12-18 months). 

Appreciate you explanation on how this process works and timing.I asked the bigger and better question to my adjuster.  

Also, if you haven't hired a lawyer yet, or you work with numerous lawyers, when you come to them once the offer is accepted and they see that you or your broker already provided a form contract... you'll see there reaction :) it will also cost you more in legal fees for a lawyer to review and fix it than it would to start fresh using their form contract they are comfortable with.

When we listed our house there were numerous homes available, now it seems inventory has thinned out.

Did I misread your explanation? 

Like others have mentioned, you owe no explanation.  

@Jessica Zolotorofe that's some awesome advises and explanations.

You should however tighten up your lease in the future, as you have already seen there are numerous holes that need to be eliminated.