Post closing financial requirements for coop

Hi my partner and I are looking to purchase a one bedroom coop for use as a 2nd home. We are paying cash but both of us are retired. I have $70k gross rental income per year and substantial real estate assets. We both have healthy IRA retirement accounts. Between us, around $1.2 million in cash plus stocks/bonds/investments. So if we purchased a $500k coop, that would leave us $700k left over. Is this enough for most coop boards or are we better of purchasing a condo (which we prefer not to since much more expensive). TIA for any advice as we are newbies to coops