If it's still mortgaged, you have to weigh the risk of a Due on  Sale clause / refinancing to a corporate rate loan.

Should I start a corporation?

Originally posted by @Matthew Paul:You sue him , when you win you get a judgement then you go after any real or personal property he owns  To clarify, you mean under theories of personal liability to pierce the corporate veil?

@VICTORIA LEONE if you have a corporation, then this sort of travel should be deductible.

@Scott Palmer My background is similar to yours, retired now, but worked in corporate finance, systems, programming, and when I semi retired, bookkeeping. 

What corporate structure do you use for NJ house flipping?

I formed an LLC with a business name that is unique and the preparer inexplicably failed to include a comma after the legal name, I was astounded to discover this one day because I have always included the comma in my business name as a basic form of punctuation and by far and away the format in which most corporations and LLC's represent the legal name of their business.

I have no desire to get an office job and climb the corporate ladder because I get very frustrated when I have to sit inside all day. 

Will depend on several factors like the type of property, type of tenants, your risk tolerance, other assets you own, your estate planning, laws where the property is located, etc.Any lawsuits would be limited to the assets of the LLC and not your personal assets (assuming you run the LLC appropriately and the corporate veil is not pierced).

If all of your income is from rentals, there's probably no benefit to an S Corp or LLC taxed as S Corp.