Or do you just have separate accounts and cards for each property to track that way? 

Sale price: $2,300,000 Two separate contiguous parcels of land of approx 14 acres in Collin County, McKinney ETJ (Prosper ISD), North of DFW area, Texas.

Nothing is owed on the inherited property.My question is, with the costs of building new still relatively high, would it be better to subdivide and build on the current property or use the equity of the inherited property to buy another separate income property?

AB1482 states that "single-family homes/condos (residential real property that is alienable separate from the title to any other dwelling unit) are exempt from AB 1482 if (1) the owner is not a real estate investment trust, a corporation, or a limited liability company in which at least one member is a corporation and (2) the owner provides the tenant with a written notice of the exemption"The part that is confusing is "...a corporation, or a limited liability company in which at least one member is a corporation."

both homes are rented already for several months It's not clear if this is one or two separate loans.$4300 in origination fees on $283k is 1.5% for a commercial loan - sounds about right, maybe a bit high. 1% is mostly the norm.

Did you separate the land value from the $244k RCV? 

Sale price: $2,300,000 Two separate contiguous parcels of land of approx 14 acres in Collin County, McKinney ETJ (Prosper ISD), North of DFW area, Texas.

Could I sell off the ADU or main house separately?

For reference we are not married and file separately.

As a general rule, each entity that files a separate tax return (partnership, s-corp, c-corp, etc) will need its own QBO subscription.