From everything I've read and heard, having the proper systems set up when first starting out is key.

These are actually key factors why we choose to live in that area.

You bought where the numbers made sense and you made it work.You know how many people are sitting at their key boards stuck in analysis paralysis trying to control every single aspect in a deal and making every excuse not to go through with it.Once again I commend you in your actions.  

Compared to an IRA, Solo 401k contribution limits are roughly ten times higher.There is no custodial requirement for the 401k.You don't need the additional expense and administration of an LLC to have checkbook control.There is a built in-Roth component whereas IRAs are either traditional or Roth, not both.A spouse can also participate in the same Solo 401k plan.The Solo 401k has additional tax benefits over an IRA when investing into real estate using leverage.You can borrow from a 401k, but not an IRABoth C-Corps and LLCs can adopt a Solo 401k.

Having a supportive wife is key :).

If you are looking to buy a turn-key MHP, I would recommend researching and determining the area of the country you would like to invest in and then locating a MHP Broker in that area that can assist you in locating a park that will fit your criteria. 

If you can get them to execute a DIL then offer cash for keys and have them exit the home (hopefully) in a peaceful fashion We usually don't make the CFK payment until they move out and we get a local agent to inspect the interior. 

Be aware... many turn-key providers are selling homes above what they may appraise for and you may have to bring even more money to the table to close the deal.

Technology and either building your own team, or using a team that has already been established by someone you can trust is key to a successful investment.

Alternatively, how much cash for keys does one offer?