My business model is similar to the sneaker heads who resell Jordan’s, so it can be volatile which concerns me.

I am a business owner of 2 stores, 1 in Vero, and the other in Port St Lucie. i got a killer deal on a house in Vero Beach, Florida.

Instead of diving straight into business, I'd chat with property owners about their goals and challenges.

You should bring the lender your 'business plan' for your rad therapy business.

I'd think people with funds they don't need for 1-5 years and with trust in you and the business would be ideal candidates. 

If you want control of your business, don't do it!!!

It comes down to finding the best level of protection that fits your budget.When I sit down with clients, I always discuss (1) their personal assets, and (2) what their current investments portfolio and other business ventures are before discussing (3) their future goals.

If you plan on growing and making this a business, start with property management software ASAP.   

Do you see more people selling their houses on their own or will it be business as usual once the new post NAR ruling policies go into effect this summer?

While it would impact some business plans more than others,  its probably possible to function with 5-10% a year rent increases allowed and vacancy decontrol,   but if we get the more extreme variety like what the far left wants  (inflation or less for increases,   no vacancy decontrol,  etc)  it will be bad.