I knew the area and had bee looking for a while, but properties were flying off the shelf.

But in reality, that can take years of saving large down payments, building business credit while moving personal debt to the LLC to boost DTI, unless you have cash resources to be able to buy off the shelf credit products from firms like DnB.

We consider any costs associated with networking events as an investment in ourselves and our business and this approach has paid infinite dividends...

Via BRRRR most of my properties have infinite ROI (i.e. all initial investment extracted via refinance). 

Some people would consider the returns as “infinite”

Your time as an investor is infinitely better spent analyzing markets and deals.

We used standard off the shelf replacement windows from home depot. 

Well, I guess if you have infinite time and your time is worth nothing why not do it all yourself?

Infinite return, I had no money in it. 

I wouldn't bother with the kitchen cabinets because off the shelf kitchen cabinets are cheap enough and so bulky to store that the discount is going to be hardly worth the storage and capital costs.