You’ll probably get lower interest rates on an SBLOC, but the major risk here is that you’ll be collateralizing your stock portfolio.If your deal goes south, you could lose your equity interest in your property, and some (or all) of your stock portfolio.

Are these all single family, or all one structure etc. 

The big box stores have stair treads you can use to replace some or all of your treads.

This would allow the losses from depreciation on any or all of your investment properties, including those losses generated a cost seg, to offset other active income.

I want another rental property but am unsure of how much to have in savings before purchasing another, or all in all what to do next.

@Ken M. not sure if it would count as a scorchin' hot deal or not, but it would be a great BRRR where I'd be able to get most or all of my money out of it and still cashflow a few hundred/month.  

house hack a place and STR part or all of it. hope this helpshappy to dialogue further Aside from aviation, which is almost a brand new career start and may require 6-12 months of getting my medical back I've pretty much peaked as far as my career goes.

Any or all of these three can result in heavy losses.

(The PM isn’t keeping 1/2 or all of it.) 

(Note that activity may be just that STR or all the STRs you've grouped into a single activity as per Reg.1.469-4.)