@JD Martin  Great points about the psychological aspect of investing.

The one aspect I'd negotiate for is to increase the balloon to 7 or 10 years. 3 or 5 is too short.

So do consider that if you are planning to live in the unit that you are taking into account all other aspects of how the location you choose affects your life. 

The attorney does.The lender charges you $500-1,000 underwriting because that's how they pay their staff who handles all aspects of underwriting a loan. 

If so, the law states that it must be ADA-compliant to the 'maximum extent possible' but if alterations would destroy the historic aspect of it, a lesser standard should be applied.

The reason is there are so many aspects of MHP's that no lawyer usually has that breadth AND depth to effectively advise on so many topics.With that said here is my recommendation if you truly need an attorney:Get a generic real estate attorney to help with a purchase contract, if that provides you comfort.Bring in specialists for help if you have specific issues in a certain area you need help (e.g. zoning, grandfather status).I have a custom 15 page MHP-specific contract I use for investor-owned MHP's (this contract is mostly padded with seller disclosures and outs for the buyer if materials facts are omitted - everything from utilities, zoning, and financials), and then for small sellers I use a 3 page TAR form. 

However, I'm thinking that every hour spent finding good deals is worth hundreds of hours spent afterward on all other aspects of RE investing.

So many viable options and I guess I am just looking to learn and grow from someone that may have more experience and expertise in this aspect of investing than I do.  

I wasn't aware of the commercial loan aspect either.  

There's a wealth of information on Biggerpockets and I would suggest doing some self-educating on the different aspects of REI through the "Education" tab up at the top of the site.To be a little more specific, search for "House hacking" forums and blog posts to get a more in depth look as to how to get started with your condo and /or multifamily plan.Also consider why a condo and not just a multifamily to start...I could almost definitely say you don't need a RE company at this point.Like @Cameron Norfleet said, you could start with reaching out to a lender to see what types of financing you will qualify for.