Robert, perhaps you can provide a little bit more information? Are you asking if it is better to rent than sell? It all depends on the mortgage on those homes (if any), what the neighborhood is currently leasing for, and several other factors.
The ability to buy another home when you already own 2 will depend on your debt to income ratio, your credit, and again several other factors.
I'd be happy to discuss your situation with you if you would like. Feel free to email me or give me a call.
B&B Realty Group - Keller Williams Elite