Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

If they just represent first time single family home buyers and aren’t constantly finding off market properties and reviewing deals, you’ll find a better investment through someone else. https://www.kiavi.com/blog/out-of-state-real-estate-investinghttps://learn.roofstock.com/blog/out-of-state-real-estate-investing

I wrote an article that I think you'd find value in that will provide some answers to your question: https://www.straightupchicagoinvestor.com/blog/6-must-knows

Then you can read a more in-depth book like The Book On Rental Property Investing by Brandon Turner or The Unofficial Guide to Real Estate Investing by Spencer Strauss.Here's a guide that teaches you how to analyze a property.https://www.biggerpockets.com/blog/rental-property-cash-flow...Finding deal that cash flow is the easy part.

Again, the BiggerPockets store has some books on this topic, or you can learn about it by watching podcasts, reading blogs, and interacting on the forum.

https://www.biggerpockets.com/blog/brrrr-loans-what-are-the-...

I interviewed the new company using the following articles. https://www.biggerpockets.com/member-blogs/3094/91877-how-to... 

@Jerry Chilimidos,Here is a list of lenders who specialize in lending to IRAs and 401Ks:https://www.biggerpockets.com/member-blogs/2810/50272-list-o...I don't know where your rentals are located and how they are performing but selling might be an option vs doing cash-out refi.I would certainly consider option C.

We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

I share more on splurging/saving for max ROI on my Bigger Pockets Episode (933:https://www.biggerpockets.com/blog/real-estate-933), if you haven't listened to it already.