You also bring along a locksmith to change the locks.

Vendor sponsors are only people he's done business with (insurance, locksmith, appraiser) and they're all very well-regarded by other investors who have used them.The investors who are unhappy sound like they have a right to be, but I don't know the other side of the story.

I'd also make sure you have a locksmith lined up to change the locks. 

Regarding the back door you may need to get a lock smith in there to switch out the lock, which should not be very expensive. 

If you don't want to go that route, look for a local locksmith that will do them for you and give you a master key.  

I sent a locksmith to replace a lockbox on the property because the code I was given to the box doesn't work.

In order to secure the premises, the Owner has intentions of having a locksmith change the locks on that date.This notice to vacate is due to acquisition of this property at Sheriff Sale by ________________ the Owner of this property.Should you fail, refuse or neglect to vacate said premises by the given date shown above, legal action (as the law requires) to obtain prompt possession will begin so as to evict or remove you from the premises.Should you have need to remain in possession beyond the date mentioned above, yet are willing to surrender possession of the premises voluntarily without need for legal action on the part of the Owner, you should promptly contact the Owner's Agent whose information appears below to attempt to make an arrangement.Thank you for your cooperation.Agent name: ______Agent's phone: ______Then another notice of changed locks gets put up.

You're going to want to contact a locksmith to open the door for you and then change the locks as the previous owner may still have the keys to the property.

Next time have them call a locksmith.

Selling agent needs to take care of this or the deal is offIf the tenant changed the lock without written authorization and the tenant was given proper notice for inspection, the PM can legally show up with a locksmith and open the door....as long as a decent lease is in place....which given the situation, there may not beSo you had an "appointment" and neither real estate agent showed up?