My agent said the seller would have to do it since the FHA won’t fund the loan until everything is in compliance

I don't like that if a part breaks, it can shut you.Full-service is a real business with employees, maintenance, marketing, finance, advertising, inventory, compliance, customer care, utilities, vendors, supplies, etc., etc., etc.

I would recommend obtaining direction from whoever guides you on such legal compliance maters. 

Take the next step, go hang out at a mobile home dealership  and they'll put you on commission.Dollars to doughnuts any small dealer financing mobile homes will not be compliant under Dodd-Frank, might read threads by @Ken Rishel, unless they are hooked up with a brokerage or compliance team. :)

But wait there's more - lender u/w departments and compliance departments use some very good informational software tools that may scare you to know that they automatically cross reference  addresses you've shared on the internet, distance from home to work to other RE owned, addresses you share with creditors and much more.

Just a word to the wise.The best solution is to work closely with an attorney, so that you stay in full compliance of any law.Nothing here is given as legal advice.

Come check out the code compliance MFR I'm working on now.  

Wouldn't you know it, the compliance people confirmed (again, in writing) that it might be construed as discrimination if we use investment financing on a place we know for a fact she lives!

ResourcesROBS: http://www.irs.gov/Retirement-Plans/Employee-Plans-Compliance-Unit-%28EPCU%29-Completed-Projects-Project-with-Summary-Reports-%E2%80%93-Rollovers-as-Business-Start-Ups-%28ROBS%29UBIT: http://www.irs.gov/Charities-&-Non-Profits/Unrelated-Business-Income-Tax

Might as well give code compliance your address so they don't have to do much work to send a citation.