Breed restrictions apply.

Would an adverse action letter be required for each of these potential tenants who has requested a showing or submitted an application (I did not invite anyone else to apply yet, but some have applied immediately upon seeing the listing without any pre-screening).Any insights would be very much appreciated.

If they are applying for a service animal, it is free to them.

Under 6 months only requires 30 days' notice. https://www.chicago.gov/city/e...That said, these time frames do not apply if the tenant is delinquent on rent.

Is there an advantage to me as an investor, to apply heloc separately from my wife, and her applying on her own, or is it better to apply jointly, such that it doesn't matter on helocs?  

HELOC's are a great way to apply OPM.

They're talking about different kinds of conversations, but you may be able to take the principles and apply them to conversations with lenders. https://store.biggerpockets.co... 

@Curtis Wang unfortunately, I don't have anything definitive to say either :)Every state has different rules, and within states, counties apply the rules differently.

(If this seems negative--please don't take it that way--I'm rooting for you to get the house!)

I would try to keep it under contract while you apply for rezoning or permission to grandfather.