Is this considered concealing of fact and the contract is voidable?

But concealing information to obtain a mortgage runs the risk of becoming a felony (multiple posts on BP about this) and I personally have no interest in that.

I have a concealed permit, so no one ever sees my weapon and luckily, I haven't had to use it.  

Is concealing your contact info common or is it usually a red flag?

Otherwise whoever you sell to if they get sick they could come back and sue later on etc.Anyone can sue but they might actually have a case for concealment if you knew of the mold yet tried to repair it cheaply and improperly which caused them to become ill.No legal advice given.     

Someone who is selling a dog will probably want to conceal as much as possible.

They have point of use options for low cost install or an in-line option, which may require a plumber to install, but they are more concealed and permanent.

Certain unscrupulous types might make intentional errors to conceal their past. 

However, the property was refinanced with a value of nearly $1m last year.In case you don't know this market, I don't need to conceal/carry to any of these buildings.I also have a small tech business in Plano Texas that has been in operation for 13 years. 

There might be some way to document your reason if you want her to move out.On the service dog thing, it does not speak well of her that she concealed her intention to house a dog at lease signing.