You can still personally guarantee the loan.

Since you are a disqualified person to the 401k, you could not sign a personal guarantee on any loan to the plan.

If only one member of the LLC guaranteed the loan, then the outside basis is increased for the guaranteeing member.

My question is with financing; I want to have the loan with the business, and have my partners and I guarantee it, but I have no idea how that works (or if it can).

You have to personally guarantee the loans anyway. 

Some other tenants who had good credits were always late on the rent...Having good scores does not guarantee that they will be good tenants. 

Generally,Quit claim is the seller handing over any interest that they may or may not have in the property with no guarantees whatsoever.Special Warranty is the seller handing over any interest that they have with a guarantee that there was no issues during the time they held the property i.e. liens or the such.General warranty is the seller handing over any interest that they have with the guarantee for the life of the property including before they originally took possession.Release is when the lender has received all payments and has sent the title to the home owner.

Get your lender to agree in writing to it and all they are probably going to ask is that you have a personal guarantee on record with them.Buys you time to get the LLC going, lets you put an offer in on the property, and if you get it transferred fills your need of some "protection".

However, you'll still have to personally guarantee the loan. 

Unless contrary to any provided disclosure or guarantee, seller has every right to say no to your request, which they did to mine.So for a few hundred bucks I hired a structural engineer to evaluate the foundation, provide a report and scope for repairs.