Does my spouse qualify as a real estate professional in this situation?

My spouse will only be working full time at a different job 6 months out of the year. The other 6 months he will be staying home and not working any other job, therefore he should be able to spend more than 50% of his time during the year on managing our two rental properties (I am the landlord for both rental properties and we are filing jointly) as well as meet the 750 hours + threshold. We do not have any kids or side business, will he qualify as a real estate professional? What kind of proof needs to be shown other than communications and coordination of managing rental properties during that time?