I would consider it a somewhat substantial amount, however, its not enough to cover a cash purchase and rehab of a decent multifamily.

As @Linda Weygant weighed out, a rental should not be subject to SE taxes unless it is short-term and substantial "hotel like" services are rendered -- e.g. daily maid services, continental breakfast, shuttles, laundry, etc.Your flips should be in a separate LLC. 

Any recommendations for licensed electrical contractors in Dayton who can do a substantial amount of work?

How to win friends and influence people.

Very rarely will people paying substantially less than market rent just agree to paying higher rent right off the bat.

Laddering 20 year TICS performing at 7% can build up a substantial stable income that doesn't all go dark at any one time. 

BP community,BP podcast episode #300 featured Tim Shiner (orig. episode #221), who mentioned using schooldigger.com to look for top school districts that influence where he invests.

My partner and I don't have any substantial money put down however, we will be managing the entire project from start to finish.

Even if you get a highly-reputable outfit that will send well-above-average guys, you can expect to be charged substantial money for a great, labor-intensive refinishing job on an old floor that approximates the look of a new wood floor.I don't know what you want your spec rehab to look like.

I know I want to rehab the places I've found have potential to bring in a substantial return and I have no one to pitch too where do i find someone who will listen??