Where to invest 1031 proceeds

[Stuart Fraass]

I am 50 years old, live in NYC, plan to retire in Florida in 15 years when my children have graduated high school. I own a commercial mortgage company, have owned 8 sfr/condo rental properties and would consider myself relatively educated in real estate investing.

Looking for ideas where to 1031 $300,000 proceeds from the sale of a Denver condo, with the goal of either paying off a retirement home/condo in Florida, or purchasing a multi-family home in Florida/New York/New Jersey that will provide cash-flow when we retire.  Would welcome any seasoned investors advice and thank you in advance for your thoughts!