Exclusion of capital gain (2 out of 5 year) question

[Raja Carmi]

Dear community,

My wife bought a condo in September of 2015 and lived in it until October of 2017 (a little over 2 years). She moved in with me in October and rented out the condo starting January 27th, 2018. The lease expires on May 17th, 2019 and we are considering selling it by July 1st, 2019.

1. Would we be able to exclude the entire gain on the home given that she lived in the property for 2 years (~25 months) out of 4 years (~46 months)? 

2. Is there any reason, from a tax standpoint, to hold the property and rent it out for another year? 

Thanks,

RRC