Holding a one half undivided interest means you can move in, you can rent your interest without the consent of other owners, you can also obtain a loan on your interest if a lender is willing.Not trying to mess over siblings, but they need to be reasonable as they can't get more if you don't want to sell without going to court and that can be a forced sale at auction, might not get the best price.They can also sell you their interest by seller financing to you, Dodd-Frank won't apply in this situation. 

As an owner, I'd never allow someone to contract for repairs on the entire building without my consent or control, you might address that as you could scare him off.Much of the lease needs to be building specific, condition is an issue, I would want each major element addressed, roof, exterior walls, hvac, plumbing, electrical, common areas.

Also, the paint in referring to is they painted rooms and walls without written consent.  

@Gerry RaeThere is a thread herehttp://www.biggerpockets.com/forums/93/topics/1847...Arizona RegsDisclosures in a Transaction:In accordance with the Commissioner’s Rule, R4-28-1101 (B), a licensee participating in a real estate transaction must disclose in writing any information the licensee possesses that materially or adversely affects the consideration to be paid by any party to the transaction, including:Any information that the seller or lessor is or may be unable to perform.Any information that the buyer or lessee is or may be unable to perform.Any material defect existing in the property being transferred.The existence of a lien or encumbrance on the property being transferred.In accordance with the Commissioner’s Rule, R4-28-1101 (E), a licensee shall not act directly or indirectly in a transaction without informing the other parties in the transaction, in writing and before the parties enter any binding agreement, of a present or prospective interest or conflict in the transaction, including that the:Licensee has a license and is acting as a principal.Buyer or Seller is a member of the licensee’s immediate family.Buyer or Seller is the licensee’s employing broker, or owns or is employed by the licensee’s employing broker.Licensee or a member of the licensee’s immediate family has a financial interest in the transaction other than the licensee’s receipt of compensation for the real estate services.In accordance with the Commissioner’s Rule, R4-28-1101 (F), a licensee shall not accept compensation from or represent more than one party to a transaction without the prior written consent of all parties.NOTE: The above listed disclosure issues reflect only those requirements in the Commissioner’s Rules.

when i do the whole hog rehab I do it to make larger profit. usually i rather do rehabs that do not involved the local authorities, permits and consents. these take longer and cost more. 

She could always have a lawyer review her situation, but if she doesn't want to do that what I know is below.Usually renters aren't allowed to swap out locks without landlord consent.  

They had repairs done without my knowledge or consent.

This does not require the tenant's consent or agreement, just that you have given them notice.

Second, beginning in October of last year, the TCPA was expanded to require express written consent for all autodialed calls to cell phones.

. • A Seller cannot put a mortgage on property being sold by Land Contract during the Land Contract in an amount BIGGER than the balance due on the contract without the consent of the Buyer.What the Law Says a Seller Must Do• Every Seller must, at least once year or upon your demand, (but no more than twice a year), give you a statement showing the amount paid in principal, amount paid in interest, and the remaining balance owed.• The Seller must RECORD the Land Contract in the County Recorder’s Office where the property is located within 20 days of signing, and it shall contain the legal description of the property.