Input on Partial Capital Gain Tax Exclusion

[Ebi Amiri]

Hello investors,

I just sold my property while I had lived there for only 10 months 4 years ago. It was a 2-bedroom condo but my next house was a 3-bedroom single family house. I got married right after buying the single family house. Any input or tip on how to define a justifiable "unforeseen circumstance" to use partial tax exclusion? 

Thank you