Do not defer with the hope of reapplying for MD in the future. I would estimate your odds of landing a seat at an MD school with your stats to be very low (assuming you're white or asian). There is a real shot you'd throw away your only acceptance with no better alternative in the future.
If you would want to reapply DO, I still would recommend against turning down your current offer. Your stats are good for DO, but why roll the dice again unless you absolutely need to. There's always the chance that you don't get another acceptance.
Someone else mentioned deferring a year and if that's possible that would be your best option.
Your options from best to worst:
#1 Defer
#2 Start school in Arizona
#3 Drop Acceptance, apply DO later
#4 Drop Acceptance, apply MD later
I'm really sorry about your tough situation. I get how hard this must be right now, but I think most people on here don't want you to make a decision now that could potentially cause a lot of hardship in the future.
Best of luck!
Very very sorry to hear about this. But the worst mistake you can make in your medical career will be to give up an acceptance for a maybe.
And DO schools will not care about your extra year of Lab Research.
This.
If you really want to be a doctor, do not let this slip through the cracks. As Goro said,
the worst mistake you can make in your medical career will be to give up an acceptance for a maybe.
I’m very sorry for your loss, but you need to understand that you may never have another chance at this. While some schools may allow you to explain your reason for acceptance withdrawal, others may not, and you’ll be considerably limiting the number of schools willing to take a chance on you.
I will echo Dermpire almost exactly:
Your best options, from best to worst, are as follows:
1) Defer your acceptance to AZCOM.
2) Take your acceptance to AZCOM and attempt to transfer to an eastern school.
3) Take your acceptance to AZCOM.
...
994) Reapply to DO or MD schools.
If the loss of your sister provides enough gravity for you to, with sound mind, withdraw your acceptance to support your family, you should do so. But be aware that there is no guarantee that lightning will strike twice and you may delay your life goals indefinitely if not permanently.