I started off by knocking on the doors of doctor's offices selling diagnostic equipment.I worked my way up through the ranks from regional sales manager to national to director of sales - I had finally made it. 

Does the MLS give you access to properties only in the state where the real estate agent operates or is it nationwide?

I'm a local Realtor in Washington state and I want to get into wholesaling to build capital for my REI company, I'm new to investing, don't have a lot of funds and looking to start and grow, what are the laws regarding me wholesaling as a Realtor in Washington

This is because the financing will often fall through due to poor up front qualification by the major national lenders.

He just wants to sell and avoid capital gains I imagine.

But what about all the other expenses like on-going maintenance, capital expenditures, vacancies, etc?

  ( which is why sub too in the hands of those with little capital or don't know what they are really doing are so dangerous.) 

We are considering selling this summer, and I am wondering if we can leave the unit empty for two months so we can take credit for living there for 2 years and avoid capital gains taxes.

The non-profit National Tax Lien Association is a solid resource for knowledge & networkingNTLA.org

I assume that you have owned your current duplex for some time, that it was a rental and it is currently under contract to be sold (as opposed to under contract to be purchased)No --- Duplex I am selling was purchased in September - I bought this duplex to complete a 1031 exchange on a duplex I had sold April 2017 and owned since 2006 with a sizeable (to me anyways) capital gain and depreciation recapture2.