So for my inspection calls, only two things always come with: my bag, which has my papers, the mighty little Juice, extra screwdriver bits, and my injection-molded toolkit case that I bought from Costco three years ago.The most important tool that this kit is missing for me is a small Channellock tongue-and-groove pliers, which I also carry in my bag.

Someone mentioned spray foam, but since the property is already built you would need to use injectable foam.I think it might work very well. 

That enables me to buy the property for below market value and to inject some sweat equity into the deal by doing the necessary renovation work.  

For example the property throws off great cash flow and has been stable for years but all of a sudden the property needs 50,000 injection due to an unforeseen larger repair.

we used injected foam insulation, very cost effective, gives R-20 insulation as well as reduces outdoor sounds (traffic, neighbors, etc).

Also look for the clause that talks about additional capital raises - if the deal requires new capital injection, are the limited partners on the hook for new capital. 

All the advice is super sound and injects the confidence needed to prepare myself for that first type of phone call from the tenant.  

You won’t be able to inject money from outside if you are short on cash available.You can’t get involved in any repairs or active management for your property as it would be an illegal contribution and the IRS will disallow your tax shelter.In case of liability arising from your property you may loose the totality of your retirement plan.

. ;-) You actually can have a company inject concrete under the slab but you need to know why it is sagging or it is likely to sag again.

And no, the capital inject by one member does not have to determine the ownership, management or control, it does default to the contribution if it is otherwise not stated.