This is in the event that their is extensive damage, we file the claim with their insurance.  

I would advise you begin to make connections there as well.Another thought on this project is, can you volunteer to be part of the rehab effort either for pay or free so that you can learn about what it takes to perform this kind of work and get a birds eye view of the standards this other investor operates by??

I don't think demand for $100k primary residence will be strong in that area, there are so many 1950s ranch houses $60-70k, even though yours is the nicest.From an investment standpoint, that area is a stretch to rent over $925 on a 3 bdrm.  

he'll just need an addendum and all contract documents to state he has the ability to move in within the 60 days.The risk if it's tenant occupied is he might have to evict if he legally purchases and the tenant does not vacate.75 days move in wont work I'd stretch out the escrow by burning time till you're within 60 days or restructure the contract:

Also i inserted at the end of the rental agreement that a 3 month inspection must he performed every three months and we both sihned and intialed that statement.  

The only viable strategy is to buy them at a very low cost.......We have some around 1830's but had to do extensive plumbing & electrical work.

It's not uncommon for a seller not to show occupied multi-units unless they are certain of the buyers ability to perform.  

I have considered MHP investing extensively and always run into the problem that there is no supply in Miami.

Then you get to profits to split, your portion should be last and include your management fee as that will be seen as a performance based earnings. 

As I said above, the seller has managed this property for many years and has apparently not treated it like a business, i.e. having long stretches of vacant units while he took his time in making any needed repairs or maintenance.