Raise rent on the difficult ones to full market. 

When your paying cash, the numbers always work - what you aren’t accounting for is the ease/difficult of management.

If you don’t put a home on the property, you may have a very difficult time selling the vacant land in a rural area.

Also, repurposing the improvements for another use may be difficult depending on the construction.

It's in very good condition (very livable) except, and here's where things just get difficult.

However, inventory remains in incredibly tight, with only 1.5 months of inventory in Austin and 2.2 months in the greater Austin area (a balanced market is 6.5 months).Steve Crorey, 2018 president of the Austin Board of REALTORS®, said, "Historically, it’s common for some homes to be on the market for 50 days or more, even in markets with strong housing demand. 

Sell house, deposit check, take out initial deposits, split balance 50/50, close account and move on to the next one.I would also suggest if you are both physically working on the property that you agree on an hourly rate and pay it if one person works more hours than the other.

The Bay Area market is a difficult one to fathom, more so if you don’t live in the area.

We had a difficult time getting an appraisal, because the only duplexes sold in Pittsburgh, were fixer-uppers.

You don't need to make things so difficult.