1031 Exchange Tax question

[Account Closed]

Good morning I completed my first 1031 exchange in 2019 however I am no being told by the CPA we incurred a mortgage boot due to not purchasing a property of similar sales price. 

Property sold $1,200,000

Payoff $700,000

Proceeds $500,000

Proceeds were rolled into the 1031 Exchange and used to purchase like kind properties of different purchase prices one was $225,000 and the other was 275,000 totaling the proceed amount of $500k. 

My CPA is now saying we needed to buy a like kind property of the same sales price of $1,200,000 and we now have to pay the full tax on the 500k which is roughly 60/70k to Uncle Sam. 

Any of you smarter people on here can help me out ? I am about to jump from 30th floor. 

thx!!!