Ponts can be built into your rate as well so compare notes with more than one lender/bank.   

We recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

Over time, I’ve accumulated more cash reserves and don’t need as much flexibility, but I’m actually in the middle of a refinance right now using an interest-only mortgage—because the pricing with the lender and the corresponding ARM is more favorable than a comparable principal-and-interest loan.The key with these alternative or "exotic" mortgage types is that you need to be financially savvy and have a solid plan.

I just want to compare the real estate and stock market investment.

There are plenty of deals in Philly on and off-market from wholesalers, who are pretty decent in Philly compared to other places.You will need to get your GC license here and learn the permitting process and necessity here as well.

I really like LLCs compared to corporations because of the free stepped up basis for passing property to my children. 

Correct - Track all your income and expenses.The bookkeeping will determine whether you are profitable or not.it will also be good to compare from year to year your income / expenses to see what expenses you can potentially try to limit.I.E.

They provide flexibility and efficiency, especially for experienced investors.How have you found the terms and structure compared to traditional options?

As @Carl Millsap said it depends on how much more in rent you're getting compared to the costs of renovating.

This would allow me to save money compared to paying cash or the huge Down-payment DSCR loans require.