The 2nd and 3rd quarter this year were the first years that I have invested in notes where there was almost no inventory or whatever was out there was dramatically overpriced. 

This will help you dramatically with getting loans (interest, downpayment rate etc.)

As the rent yields continue to compress, most investors are looking at alternative strategies to boost cash flow yield like short and mid-term rentals, rent by the room, etc. 

The LTRs should keep cash flow stable while the STR will boost cash flow in peak months.

Personally I like the eastern suburbs of Maple Heights (44137), Garfield Heights (44125 and some 44105), Bedford (44146) and some pockets of Cleveland that are adjacent these neighborhoods (some of 44105 and 44128).In terms of ROI from Cash Flow the market has changed dramatically since I bought my first rental in Jan 2017.

This can include staging, professional photos and tours, maybe a unique website, boosted postings on social media, or whatever you come up with that sets you apart.

What can more dramatically effect your investment is which street and neighborhood within those metros you are on.  

Luckily, this property was not in a flood zone but another property that I had a opportunity to purchase,( a few hundred feet away) was partially in a flood zone that could of dramatically affected the exit should I had bought that property.

AKA very easy/simple things that require no actual part replacements or major work.My fear is that when I hand my portfolio over to a PM I will be getting a lot of high price maintenance expenses for service calls which might raise my expenses dramatically.

You will have to intend to live in it for a period of time over the year.. but the rental income that you mentioned to them will most likely make them say it will need to be reclassified as investment home.FYI- loan level pricing adjustments on second homes are changing April 1st this year which means rates are going to go up on a second home (pretty dramatically actually).