Lumber goes up 300% due to tariff, covid, fires in Canada.4.  

I ended up unloading all of them and switching to passive investing.

I ended up unloading all 15 properties. 

I ended up unloading my entire portfolio and today I invest $5K each month as a member of the co-investing club.

After site prep the house can be unloaded and set up in a few hours.

They recommended a local lumber yard selling RTA. 

Then hiring people to unload.

Here's an example:A few years ago a bank draw inspector tripped over some lumber while inspecting the framing of a new construction project I was working on.

This is because lumber, rough mechanicals, site work costs don't vary much whether its entry level or higher end housing besides likely using engineered instead of dimensional lumber assuming larger homes with wider spans.More to your point about building multi-family, in Philadelphia I am finding it more and more challenging to build multi-family housing.

If the builder has been cutoff of credit at the local building supply store (84 Lumber/Tyndalls) and is on a cash only basis then stay away from them.