I personally like to have multiple units so your risk is mitigated a bit, and to be fair I am a multifamily guy not a commercial investor. 

Junk mail - I get multiple credit card offers every day in the mail now.

There is a lot of costs that need to be considered despite how much you think is finished.One thing that I tend to find with unfinished builds is that the permit inspections failed... often multiple times.

Have you spoken with multiple broker's for opinion of value?

I would be curious to know from people who own multiple properties, have a solid day job w the W2 how to get the next deal under wraps, when you just got one.

So sometimes we have to have multiple jobs going to ensure we can always give a our guys as much work as they need.

Take x dollars out of property a, invest in property b - here is profit, cash flow, risk, reward, plan to grow to multiple properties increase cash flow etc.

Market is really hot and so I don't have anything to put it into right now and good properties go quickly with multiple offers in our area. 2.  

We are looking for multiple homes in those zip codes.

@Michael Plaks yeah i was trying to list out a few examples of expenses that may be related to multiple rentals but may not be captured under one specific rental.