I have a decent credit score (>750) but my brother has a much lower score (low 600's) due to some medical debt he incurred many years ago.

Is it education or medical debts? 

I guess I’m kind of a late bloomer, pursued a medical career out of college and that has dominated the last decade of my life.

Otherwise they would be buying unless they just happen to make a lot of money and have a bad credit score due to a divorce, medical bills or poor credit management.

I was diagnosed with a major medical condition at a young age.  

I currently have quite a bit of commercial (40k sqft) medical space.  

this is not a get rich quick thing for me my ultimate goal is I don’t want anyone in my family to have to worry about paying a medical bill or any other bill for that matter.I am open to any and all words of wisdom so please any help is GREATLY appreciated thank you all in advance

Example: You'll get a better terms (relative to a bank), if a seller has to free-up equity to pay a tax bill or pay the medical expenses.

I owe 420k on the house (2.2k/mo mortgage) and live in the 4/2.5 upstairs while my renter (medical resident) pays $1375 to live in the MIL suite that is a 1/1 - it has separate entrance/exit.

They realize the medical field is ever changing so want something more of a hard asset and stable to provide residual income.All kinds of strategies out there.