Richard Sean Ryals (aka: Sean Ryals, Rich Ryals, Richard Sean Ryals, Sr.) currently doing business under the name Tree Works Unlimited, TWU, is still engaged in illegal activity, seeking business via fliers. He is NOT a licensed contractor (it was revoked) and is therefore only legally allowed to do landscaping jobs totaling less than $1,000. He just wrote a multi-thousand dollar contract with me and told me he didn't need a contractor's license to do it.
If you want to see his revoked licenses and disciplinary history go to this site http://www.dpor.virginia.gov/LicenseLookup/
and type his name under the disciplinary action search tab.
If you'd like to see the history of his Civil and Criminal court summaries search for Ryals, Richard under Prince Williams County Circuit court at this link wasdmz2.courts.state.va.us/CJISWeb/circuit.jsp
During my research it appears he's done business under multiple company names, making Angie's List WORST DC Contractor 2 YEARS in a row 2010, and 2011. Here's the article https://www.angieslist.com/articles/worst-washington-dc-contractors-2011.htm