I would search the BP forums because your tax / legal related questions likely have already been asked.However, it doesn't hurt to still ask the forum what your questions are.

I currently have a pre-tax retirement account with employer match and a Roth IRA invested in the stock market.

I want to cancel TODAY and get a refund of the $390 + tax membership fee. 

We pay payroll taxes and workers comp, we comply with state and federal laws regarding work place safety, PTO, vacation, labor laws et al.

That leaves $400 to cover taxes, maintenance, vacancies, etc.Now, let's pretend ALL your expenses come to $2,600 and you have $400 left over.

could be just like a regular deal, but if you're up for pitching, presenting and educating a seller on the tax and other advantages of seller financing, you just might turn it into a seller finance deal.

The fact that you have a TAX-FREE income is crazy good.  

I know that i could buy my next multi family property as a primary residence close by move in, rent half live in the other and than rent where i am now which would cash flow upwards of 1k monthly, or i could buy another multi as strictly an investment property out of state which would be a lot cheaper (taxes and cost of property) and a lot more landlord friendly laws than New York, i guess i’m just undecided on which route i want to take and I’m trying to weigh the pros and cons of each scenario.

OPIf you have a company with a Sales tax license.  

At year end you’ll get a summary and a tax form.