But you also don't want to sit on too much idle money when that could be distributed back to your investors (or used to purchase more assets if that's how your fund is structured). 

Flipping in an S-corp could potentially save you on taxes, but keep in mind the admin requirements, business tax return and payroll compliance.There has been a ton of virtual ink spilled on this subject.

If you are far from the towers, then an outside or attic antennae is probably better.I am in electronics by trade so know a fair amount about this subject. 

This would be a subject to deal.

Since passive income is not subject to self-employment tax, I generally do not recommend paying yourself as a contractor on projects that you fix and rent.As for setting up a Construction LLC, that's a separate issue. 

The answer on BP is always “it depends...” and then I get the subjective pros and cons without any actionable steps for finding solutions to which option works best for me.

CARES act allows for distributions up to $100K with NO 10% penalty nor mandatory 20% withdrawal.  

Many areas have seen little to no decline in leasing, this is all subject to change market to market. 

This class of income is subject to a high flat tax rate.

It's something simple but it can be part of first impressions if someone does drive by.You can look toward some very simple and inexpensive staging type stuff, such as trying to make it seem more personal and inviting without making potential buyers feel like they're invading someone's space or subject to someone else's opinionated style choices.