I am not an attorney but I do not believe the tenant has done anything criminal even by sending inappropriate photos, that I think would only rise to the level of Sexual Harassment which I do not believe is criminal that is a civil matter until it becomes assault/battery.You would maybe be able to get the police (if you get the right one) to go talk to and possibly scare him telling him to stop what he is doing.

I would want to perform full credit and background checks on every adult on the property once you own the property.

Does your marketing/application/signing process make it clear that ALL Adults are required to be named, provide their info, and sign the Agreement?

These adult beverage drinkers can be converted into Bird Dogs when I slip in a fake $100 bill into the case handle.

I had a case where a resident had been severely attacked by a dog as a young person, and as an adult was VERY panicky whenever surprised by a dog.

For example, by making it clear that every adult will have to pay $30 and submit to a credit/criminal screening, you will probably eliminate 1/4 - 1/3 of these applicants.

If the tenant feels threatened by a roommate, they should work it out like adults or report it to the police.

And I chose people who are 'COLLECTIBLE', but also 'RESPONSIBLE ADULTS'.  

It's what would have been done anyway.As I mentioned in the posts above, I think they just had some change in their life and they felt this was the better way to handle it rather than being truthful and approaching this as professional adults.

I want to know what the healthy line of mediation is, and basically I want to remind them that they're in leases so they have to be adults.