@Bob Asad Don't fall for the trap believing you will  build a fortune off of single family rental cash flow.

I have purchased a set of 4 properties in Salem NJ and need to refinance them all to pay off private money lenders.

Hi I’m interested in a vacant property and know I can look up the name on tax records but won’t necessarily be where I can contact the property owners.thanks in advance.

That number seems high if those are financed properties; but possible if they are paid off I suppose.  

I think the answer to this question really depends on a few factors such as your current unit count, location of your properties, long term goals, and how much of your income is based off of your units. 

Based on what I've seen, there's a very good chance they will not obey the law, pay taxes, be a good neighbor, etc.

That would be an interesting market to start off in for a BRRR property since I'll have eyes out there and have a decent grasp on the market in that area. 

My focus was doing off-market BRRRR's and I've built a portfolio of 12-doors.

Also, as far as multifamily, wasn't sure what you are thinking on max price range, but guessing you are thinking 1-4 units to start off with conventional financing.

.: Unfortunately STRs do not qualify for tax incentives. you will pay 33% income tax on earned income.