Also if son is the guarantor for rent, do I need to do separate paperwork, or do both sign the lease?

None of the tenants has any paperwork, actually the landlords just didn't bother with rental application nor did they with lease.

But, what kind of paperwork do we utilize to assure everyone gets whats due to them?

Before you drop any hard earn money have FCI provide you with all paperwork you will be getting with the note.Joe Gore

We then transferred the account from Fidelity to a Self-directed custodian (Equity Trust - BTW, they have worked well enough for us but there have been several frustrations with lost paperwork, mistakes and slow processing).

In Oregon any financing of a 1 to 4 unit is covered by dodd frank..... although if it is investor to investor the paper work is minimal but you still need an NMLS license.I believe AZ is the same way ..

It's $1.7M, and I only need this amount...I'm thinking $605 - $610 for closing costs [title company and due diligence, legal fees, renewing my corporation paperwork, etc.]."

Yeah, I'm a little confused too, although I guess if you put the house under contract in the name of the land trust you dont have to assign it.Not really a good way to put a wholesale fee in that paperwork, you are basically selling the beneficial interest of the trust instead of assigning the contract, it'd be a separate agreement.

A lease option assignment possibility, but you'd need to lease it for 12 months, separate option, no rent credits.And see an attorney for paperwork.

Draw up paperwork that she has to sign first before you agree to let her stay stating that she promises to move out no matter what on May 31st because of her job situation so it would be in theory easier to evict if she try to stay past May 31st.