Look online to see if any properties are being offered for sale or rent with a legal basement unit and you may get a tip off.

Need Game room, hot tub, so on..

Everything else is fair game. 

This is not something you will get online you need an attorney to draft documents and it is just a matter of whether you draft them or their attorney drafts them

This needs to be highlighted in the lease and acknowledged by them.Security Deposits: You can’t use their security deposit for routine cleaning, but if they leave things in bad shape beyond normal wear and tear, it’s fair game to deduct cleaning costs.I’d start by having a straightforward talk with them about the importance of keeping things clean for health reasons and property preservation.

Send a letter giving them your/pm's contact and a detailed explanation on how to pay the rent (Helpful with older residents if you are going from check to online billing.

I typically use regional banks to fund my deals but my 2 go-to banks have either slowed or fully stopped investment loans so recently I've connected with several online brokers but all came from ads or they reached out to me vs personal recommendations and intros so I have concerns. 

As long as your out of pocket expense every month is equal to or less than what it would be if you rented somewhere else then you are still technically ahead of the game.

Lots of material online.  

It's all a numbers game and knowing if the numbers make sense with the turnover, rehab, and higher rents.