If you do, you need to contact an commercial insurance agent, when you get on the phone, ask if the do those two, if asked, tell them that it is a sole proprietorship, and you need 100k coverage on both.

A great place to start, is here on BiggerPockets then beyond from amazon or wherever, just pick a credible source

I'm looking to flip my first home this year in the western Massachusetts area and wondering if anyone here on BP has used rehabfinancial.com as a source for private/hard money lending?

(good infrastructure, multiple job sources, good schools, etc.)

Maybe, just maybe, you don't have to pull permits if you are sourcing all those trades.

@Mark Tomsick the San Diego REIA clubs are a great source to learn and rub shoulders with experienced investors.

Not personally, but the best source for what you seek would be your local REIA... you can find them on the global directory at nationalreia dot org.

Hi , I'm new on this site and to investing in real estate as a source of income.

Many businesses are run as sole proprietors. 

According to a well-known VC analyst source, there are currently 152 unicorns with total valuation of $552B.