Business law quesiton

Problem Twov Hiram is a CPA, licensed in the state of Virginia. He performs tax services for his clients. He works on a large IRS audit for his client Jeremy, whose business is in DC and successfully resolves the case, saving Jeremy a lot of money. Hiram sends a bill to Jeremy for $10,000. Jeremy refuses to pay because it turns out Hiram is not licensed to be a CPA in DC and has not paid the license fee. Hiram sues Jeremy for the fee. Who will prevail? Why? What additional facts, if any, do you need to know? Address all the issues that are present. Your answer should be at least 100 words. (This problem is 112 words).+ Problem Three In the facts from Problem Two, what if Jeremy changes his mind and is willing to pay Hiram, but only $7,000 because he genuinely believes that Hiram's fee was too high. Hiram argues with him, but Jeremy sends him a check for $7000 and says he is done arguing and that is what he will pay. Hiram reluctantly agrees and cashes the check. Hiram then sues Jeremy for the additional $3,000. Will Hiram be successful in his lawsuit? Why? Address all of the issues presented. What additional facts, if any, do you need to know? Your answer should be at least 100 words. (This problem is 103 words)