I am semi retired and looking for cash flow mainly.

I'm interested in other semi-passive business like coin-op laundromats and car washes.  

The other reason is that we have a (semi) fixed price.

To purchase a $320K property, you would need to have a minimum of about $150K in the plan.As @Darren Eadynoted, any future expenses associated with the property would need to come from the 401(k), so one always wants to be conservative when maintaining semi-liquid reserves within the plan to cover any unexpected costs.That said, the ability to leverage your tax-sheltered retirement dollars into a secure asset such as real estate, and receive a higher cash-on-cash return for your invested 401(k) funds is a great strategy when approached the right way.  

In the semi-near future, I plan on purchasing a house in Center City Philadelphia.

I had a property out in a semi decent area outside DC for a while and the A/C condenser was stolen 2 times, I mention that because there can be large unexpected costs in these areas especially if they are known to be high crime!

So I'm in a semi tough spot.  

More people have been looking for semi and detached homes toward areas in North York, Richmond Hill, Ajax, etc.

My goal was to place a Semi-premium product to the market place.

I love the concept of having multiple passive/semi-passive income streams.