You might also try someone like TD Ameritrade or Schwab which is really an investment account to trade stocks, but they typically offer some banking services as well. 

Eck, I am a Captain in the US Army and have 10 years of military service.

Your concern with any lender should be their process/customer service, ability to lend, if there's a holdback for rehab, the draw process.

  $1500 is more in line with the type of quality services one requires for such a program.

The pre-payment thing may depend on the mortgage servicer.

Contact Member Business Financial Service (google it for their website) they work with a bunch of credit unions that may be able to assist.

I'd like to know what the best service is for sharing investment opportunities with other people via email.

Think of all the services you can offer to make it easy  to sell AND to move and include that in your letter.

There are several of us here on BiggerPockets who provide this service, select couple people who provide quality service (do your research), check references and speak about your particular situation.

Any other PM services require a license (seasonal, annual, etc)