Maybe not the best, but the simplest was a $3,000 lot sold for $7500 to a neighbor who bought the home next door.He was able to build a nice garage on it so it all worked out for everybody!

What's the simplest way to do this?

The simplest thing for them to do would have been to hold title to the house jointly with right of survivorship.

CoCR is the simplest formula there is. 

Landlording is the simplest to understand and get into no question about it.. and the BRRR done right is the way to scale as quick as possible... this is a relationship business as well.. work as hard on your contacts and credit facilities as anything..then enjoy.. although I don't subscribe to the financial freedom mantra nothing was free building your portfolio and when you own a substantial portfolio you need to stay on point to keep it chugging along especially those with 30 to 50 SFR's that they own and self manage.. its just a job that includes working for yourself..

And the #4 reason, Supply and Demand, is the simplest and biggest factor for a more secure Real Estate Market.

The first and simplest is to raise my sales price on certain lots that can support a premium lot price.

I just get it through my brokerage since that is the simplest way for me to do it.

I guess what I'm really looking for is the simplest/easiest way to keep everything organized so when I take it all to an accountant in a couple of months, it isn't a complete rat's nest of information, and that it won't cost me a million dollars extra to transfer them into a smarter business structure. 

Simplest would be a purchase contract.