If you've done deals before and you're familiar with the buying/selling process and don't need much training, I would interview several brokerages and choose the one with the cheapest option.

Start interviewing PM's, ask them about the area, the class of tenant, the current and possible rent, vacancy and non payment of rent in this area.

So make sure to interview some people before signing any agreements.

I realize a lot needs to go well for this to work - but I'm interviewing agents and lenders, engaging with a trusted GC, and practicing deal analysis and reno estimated to give myself the best chance.

I am not sure if your family has ever reached out and interviewed a property management company, but that could be a start.

I have been interviewing brokers to find who I would like to work with.

The property management company that you may select, after interviewing, should set the standard in the property management industry for customer service, resident retention and fantastic communication for both parties.

There is are some great interviews on YT and he has a great way of breaking things down so that everyone can understand.

I’d Interview at least 5 of each of: CPAs, Lawyers, lenders, Property Managers, insurance brokers and contractors.

It's tough b/c they were probably living in their last home at the time you interviewed the prior LL.