You can also start to follow the markets; 5/10 year Treasury, WSJ Prime, etc. to get an idea where fluctuating interest rates come from. 

Can you spell cap rate compression to treasury rates? 

One can do better by buying treasuries and zero risk and then margin that bond and easily use those funds to buy more and more bonds to compound their return with basically zero risk.

Just because you do it does not make it OK to do and does not make it OK to share it as advice for others. 30% is generally considered to be safe, but it's based on interpreting examples in the Treasury Regulations and not on some formal rule.We all make mistakes.

I got to jump into investing and they're earning solid, safe fixed returns that they couldn't get in a savings account or treasuries.

With the 10 year treasury falling (again) and hovering at 250bps we're likely to see continued cap rat compression.

Purchasing 4 week Treasury Bills is a very low risk method to help you stay ahead of inflation.

Hillsborough county opportunity zones, here is a helpful article. https://eig.org/news/what-to-know-u-s-treasury-announces-proposed-guidance-on-opportunity-zones

Risk-adjusted, for these kinds of returns, your dad would probably be better off buying treasuries, which have some tax advantages.

Sure I've heard about dollar cost averaging and if you're in your twenties or thirties that might be a very viable way to invest in the stock market, but I'm in my later years and I'm not going to have the time to average a big-*** decline that's coming in the next year or two. many people just entering the market for the first time would be wisest to sit on the sidelines it's always at the peak of a market where the newbies get creamed.My treasuries have outperformed the s&p 500 in this past year and there's a lot of big investors like Warren Buffett are sitting on the sidelines with loads of cash.