Hi,
I got nominated for OINP Master Stream as well and have submitted my application to IRCC.
This is what I included:
-Signed job letter stating my annual salary
-Stamped and signed letter from a Canadian bank listing the average funds in the past 6 months and applicable liabilities.
The PoF was not specifically asked for on the check list. I looked on IRCC’s website that applicants need to demonstrate that they can be economically established in Canada.
I think if you have a job and can provide the job letter and bank statement to show that you can support yourself, that can’t hurt.
https://www.canada.ca/en/immigration-refugees-citizenship/corporate/publications-manuals/operational-bulletins-manuals/permanent-residence/economic-classes/provincial-nominees/determining-membership-class.html
I submitted my application only a few weeks ago and won’t get AoR in a while, so I can’t tell you for sure. Will keep you updated. Good luck.
what happed with your application after ?
did they asked for POF