Is it reasonable to plan for a 10-year time horizon (i.e., retire in 10 years) despite this constraint?

You really have to have at least a 5-10 year horizon.

Like he said, if you are a buyer today or an investor that is actively placing capital, you are bullish within your time horizon, that money can be made.  

@Cara Jensen pre foreclosures are probably a waste of your time unless you have a LONG time horizon. 

Also, don't fall in love with dirt...what you like today might be dull in comparison to what's coming on market in the coming year - with foreclosures and more on the horizon.  

@Rick Oaks For that short a time horizon you need the money to stay liquid.

My thinking is that as long as I'm safely cash flow positive and my time horizon is long-term, my focus is more on taking advantage of leverage to build equity, rather than monthly passive income.

But as much as I look I don't see a crash or correction on the horizon.

Having said that, we're both extremely open minded and have a good sense of our weaknesses and strengths.Looking to expand the horizon of opportunity and learning.

My horizon is listing and selling businesses.I hope that helps.