So my advice to you would be to keep grinding it out at the day job & keep pumping additional funds into your investment vehicle.

Neighbours will be an issue which will likely torpedo your plans..7 adults, 7 vehicles, 7 pets, 14 boy/girl friends not next door to me thanks. 

Most people overlook mobile home parks as an investment vehicle due to negative perceptions about the kinds of people that might live there or what they represent (poor, dirty, untrustworthy, etc).

Is there another vehicle that can get you where you want to be?

other RE vehicles (mobile, notes, ... flips, ... )?

I pay an additional $500 per year to cover my tools and equipment, and another $200 per year to cover a "non-owned vehicle" (so that if my employee is driving to make a repair and is on the clock and gets into an accident, I'm covered if the plaintiff's lawyer goes after my company).I'll have to double-check with my insurance agent about the cost implications of forming a new PM LLC, but I don't expect it to be thousands of dollars in additional liability coverage.

On the other hand it is not particularly difficult to get out of line with the IRS and there are complicated rules when investing tax advantaged funds in non traditional investment vehicles like real estate and notes.

Choose the vehicle you like.Then purchase 5 books on that subject specifically.

I mentioned it because I used to ask that when purchasing a vehicle, until I heard Dave Ramsey and he made me think things differently.

I've recently made the decision that REI will be my retirement vehicle.