I picked up about 20 units the other winter back, and burned through $200,000 in repairs quicker than you could write a check, and I have my own rehab crews that work full-time at this game.

If you will be moving eventually but still want to play the real estate game, then buy a house using the same criteria you would for a straight-up investment.

Originally I’m from northern VA but moved to Cincinnati about six years ago for my career as a design engineer in the aerospace industry.

This biggest fear is just being new to the investment side of the industry. 

Given that they put in the necessary work/time to learn this game!

I don't want to get a job that gets me out of the game, I started playing around with marketing and I'm doing lead gen, data scrape, and cold calling for investors and small businesses.

Does anyone have any thoughts on the best use of this money to step up my real estate game and buy more properties?

The industry is full of people that never even graduated HS.....are convicted felons....... file bankruptcy every couple of years.....have been divorced 4 times....... addiction issues......in other words flakey people that have no organization, structure, direction or drive in their lives.Now that's not to say that they are ALL like that....there are some fantastic people out there....very smart, organized, professional and amazing at what they do......I've met some great people...... but unfortunately they are rare rather than common

Sounds like you have a focused game plan- I'm sure you will do great things in the REI space.

My opinion is unless you desire to speculate on the Jersey City Housing market, and find that the ~400 loss per month is worth it to have skin in the game, then I would sell.Based on the wording of your post is sounds like you prefer stable cash-flow properties to speculating on the market, but both are fair strategies when properly applied