I’ve also been looking for the answer on the mass.gov website, but have had no luck in locating the answer.

I'm facing the same thing in Ohio and dealt with the same thing last year.Advertise on Go Section8, and Craigslist and Low Income Housing Websites for your area and make sure you advertise that you DO accept Section 8 Housing Choice Vouchers.

Possibly look into the website of the local district court where the property is located.

A google spreadsheet, online tool, website?

Bandit Signs, Cold calling, Direct mail, RVM, Adwords, Facebook retargeting website visitors.

Some auction websites like results. 

Most locals hate the idea of them also so they ended up creating a hotline also and a website I know off the top of my head is stay neighborly(dot)com.

JakeJake, If you go under Network on the top of the website, you will see HML in your state or every other state.

In addition, I have sifted through the city's website and cannot find anything that said a wood privacy fence cannot be erected in a flood zone (giving him the benefit of the doubt here).My question is if they come back and say that it must be taken down what should I do?

Aben,Honestly it really depends on the MLS, for example our MLS in Central Oregon pushes our listings out to approx. 2000 websites, so for $45 a month in MLS dues we see that as a great investment and also guarantees us our cooperating compensation.