For turnkeys, I like buying in B/B+ areas, that are affordable to new homeowners (one of my exits), or attractive to for a lease option (another exit). 

Keeping in mind I’m a full-time Design engineer, but I’m willing to put all my free time including weekends and holidays in helping and gaining the right experience and built the right connections.Please share your advice below, I would love to hear from you.Thanks in advance and I really appreciate the opportunity.

Check out 1 BR apartments online and see how they are designed.

Networking events are great as they attract local investors but there is not that many now due to COVID.

Non-arms length deals often cloud investment decisions...Honest and direct question -- if they want to sell it, "so they can fund other investments", that means they've come to the conclusion that more attractive IRR is elsewhere. 

Complete rehab of entire property including new open-concept layout and kitchen design.

Plus new construction will be to today's design trends, so you should rent quickly and be on the high end of market rent.

The way I have attracted most of these lenders has been through posting on BiggerPockets and through my meetups.

Any particulars that attract you to Columbus?

Key criteria for a successful SFH househack:Suitable zoning criteria, i.e. room rental laws (county by county)Within 1 mile of hospital, major company HQ, public university, and private university (to attract 20-somethings)At least half as many bathrooms as bedrooms (i.e. a 4 bed / 2.5 bath could work, but 4 / 1.5 could get sticky)Plenty of driveway space / street parking (1 per roommate)Plenty of kitchen space (since the kitchen is the most occupied room other than individual rooms)Basement or side entrance entry point (i.e. if you wanted to turn the basement into your living space, you could enter from a side entrance)Un-involved neighborhood community (cul-de-sacs can be the worst spots)Turn-key quality (i.e. you won't need to fix much of anything when you move in)This list is by no means exhaustive, but things to think about when you work with an agent on a SFH househack.