It's almost like they tack on a few hundred dollars to the order and forget to charge sales tax

You'll see some familiar names thrown around a lot: Stessa, Apartments.com, RentRedi, TenantCloud, Innago, RentManager, Avail, Rentec Direct, Doorloop, etc.I recommend you search for each app online and see what they offer, how much they charge, etc.

Some of the larger companies will take them, but they often charge a fee.

Do you have an estimate for what a lawyer will charge for this?

It may sound nice to pay a 5% management fee but the extra fees can add up to be more than the other company that charges 10% with no add-on fees.

For example, I mention that every adult must pay a $30 application fee, pass my credit/criminal background, make a combined income of 3x the rent, and whether or not the property accepts pets.

I would never form an entity with them when I can do it online with a firm that charges a fraction of what they charge).

Wonder what they charge developers to access their capital resources.   

A genuine question here for you, who are you working with right now and how much are they charging you in fee?

Attorney's Office, Eastern District of TexasPLANO, Texas – Three Texas women have been charged with federal violations related to a mortgage fraud scheme in the Eastern District of Texas, announced U.S.