2 unit vs. 4 unit rental

[Stephen Leblanc]

I currently have 3 rentals, all SFH. I know a real estate agent who also has rentals and he suggested that my next purchase should be a 4 unit building. The problem is that when I look at the MLS for my city there is only one 4 unit building for sale and one 3 unit building. Neither one of them fit the 2% and 50% rule to cash flow. When I spoke to the agent he said many of the good building that cash flow are sold to friends and family and never make it to the MLS. I let some people know, who own rentals, that if they wanted to sell or knew anyone who wanted to sell a rental to let me know. My question is, should I be patient and wait for a 4 unit building to go for sale or should I buy 2unit building that fits the 2% and 50% rule.

Thanks Steve