Can i file my state refund now, then file my property (M1PR) at a different time when i receive the statement or do i need to wait and file both at the same time?

Yes, you can file M1PR at a separate time.  TurboTax does not actually e-file that form with your state return.  TurboTax will fill it out, but you will have to print and mail it to the state.  Now, getting back into your state return to complete this form after you file may be a bit tricky, but it is possible.  I will give you some basic guidance here - and then feel free to post again if you need further help when you fill out the form later.

• You will need to go back to your TurboTax account after you file and choose the option to "Add a state"
• This will let you back into your return without actually adding a state
• You will go back to the Minnesota return and proceed through the screens until you get to the one described in the article below 
• Follow the advice laid out in the article below and be careful not to change anything else on your MN state return while you are filling out the M1PR
• After you finish with this form, go to the Print Center under Tax Tools and print your MN return - the M1PR will be in the pdf and you can file it as described in the article below

https://ttlc.intuit.com/replies/3300669

The other option, and maybe simpler option, would be to just e-file the form yourself after filing your MN return with TurboTax.  MN has a website dedicated to e-filing this form that you can use and the instructions for filling it out are fairly straightforward and shouldn't be a problem.  

You can find that information here -

http://www.revenue.state.mn.us/individuals/prop_tax_refund/pages/electronic_filing_for_the_property_tax_refund.aspx

Thank you for this post, was about to off myself trying to pull that form back up.