Resident, and any member of the resident's household, guest(s) or other person(s) on the premises with the resident's consent shall not engage in criminal activity, including drug-related criminal activity.

If revocable living trust then no further tax implications at this time as will be disregarded for tax purposes.

https://www.biggerpockets.com/member-blogs/12388/86773-renting-real-estate-without-the-owners-consent-isn-t-that-fraudThat at least preserves and improves the property, and/or provides you and her with some income. 

First, you would have to create a Revocable Living Trust document and sign it as the Grantor and the Trustee. 

I doubt that FCI would touch a wrap unless the wrapped lender consented, which would defeat the purpose of doing a sub2.

How are you financing your purchases, and are you putting them into a revocable trust upon said purchase?

Borrower will keep the Property available primarily as a residence for Borrower’s personal use and enjoyment for at least one year after the date of this Second Home Rider, unless Lender otherwise agrees in writing, which consent shall not be unreasonably withheld, or unless extenuating circumstances exist which are beyond Borrower’s control.Underwriting guidelines straight from Fannie are:Must be occupied by the borrower for some portion of the yearrestricted to one-unit dwellingsmust be suitable for year-round occupancyBorrower must have exclusive control over the propertyMust not rental property or a timeshare arrangement (referring to long term rental)Cannot be subject to any agreements that give a management firm control over the occupancy of the propertyHope this helps some of you!

My wife consented, and at this juncture it appears they've been staying here closer to six weeks... and thus far haven't given us any indication as far as when they intend to leave?         

I looked on the county assessors site and it says the house is owned by 2 people and next to that it says “trust revocable.”

I've owned the property the neighbors have been crossing without my consent for 7 yrs.