Turns out if you line up 24oc studs with loads from above in an engineered design, and make up for wall flex with thicker drywall, you can build a house the engineer says is as strong as 16OC with less wood.

Commercial takes WAY longer and the red tape is thicker

Since it is a buy and hold - splurge for the more durable thicker product.

After looking at Home Depot and Lowes, I’m trying to decide if the thicker vinyl planks are worth the extra $1ish per sq ft.Here’s what I’m looking at:1) Allure Traffic Master. $1.69/ sq ft. 3.8mm thickness.2) Lifeproof. $2.99/sq ft. 6.5 mm thickness.

You can mitigate sound between floors by removing sheetrock, installing insulation, applying metal strips and thicker sheet rock, but thats a costly upgrade.

well, yes and no...if the current panel is lets say 60 amps, it needs to be upgraded to AT least 100amps... the new code.so, the wire, the meter, the cam all need to be big enough to handle the thicker wire. the rules are the number of cubic inches inside the box need to be appropriate for the gauge of the wire.the riser might need to be upgraded too since the "pipe might be too tight". so let's say 150 amp panel is just 1 1/2", but a 200 amp panel needs a thicker wire, so the riser (pipe) has to be 2" thick so the wire does not heat up inside the pipe. the bigger the amps coming inside the house, the larger the equipment outside to provide enough space for ventilation/workability.make sense?

If you have a family where "blood is thicker than water" applies, there are many things you can do. 

So they have an R-value, greater R-value the thicker they are. 

#6 other tips:A) tips of things to watch out for: the way a tenant keeps their car interior may very well indicate how they'll keep their home (your investment)B) over-engineering your rentals during the rehab portion with thicker drywall, tile vs carpet, and Quartz counters (in higher ends) to withstand children or student abuses.I'm pretty sure both of those are from BP podcast #48 with Darren Sager.  

I look for thicker the better.