A generic program can’t be tweaked enough to make it effective for any particular deep niche.  

Can you estimate the holding and transaction costs?

It is not going to be cost-effective to run a vent for a dryer.

MOST transaction aren’t BELOW market, although I’d venture that 85% of those buyers BELIEVE they’re purchasing real property at a discount.  

So you transactional income and drip income.. both can be scaled.

@William Causey depends on the transaction and the parties involved.Agree with @Dennis McNeely on some of the transaction costs.A different issue though is with an Assignment, the buyer gets to see what you paid for the property.

Also, when it comes to sharing my investment goals (on social media or in conversations), do you think it’s more effective to highlight specific deals I’m working on or just my overall strategy?

I use HML for all transactions

However, many times its just not practical or cost effective to put the work into it because in many cases its not easy to do.

You have your life in California, unless you are looking for another job, invest with a group that can handle the transaction for you.