I have a property management company manage them as I have a full-time job, wife, and 2 boys.

Our whole job is to broker deals between buyers and sellers.

The challenge is that non-government jobs are often short-lived.

I work at my brothers business as a independent contractor ,  he has an accountant for this business is necessary for him to to this job or i can do it myself.

Local furniture shop about 8 miles away did the woodwork out of Mahogany, really great job. 

Sure, I could look for a higher paying job, but I was wondering if anyone has any creative short-term methods to improve my ratio.

Fix it.We eliminate as much landscaping as possible: we take out flower beds and most decorative features, ideally, lawn mowing is the only job tenants have to do, because we know that's all we can expect from most.

My main goal is it be able to retire at age 40 from my main job and work entirely on my real estate portfolio.

He had a tech job and we talked the business and he was legit and when meeting the family, they were very respectful. 

(https://www.mynd.co)One of my co-workers at my last job (pre-covid times) used to work\invest with them, so I had probably registered on their site back then.