I don't see any reason you cannont utilize additional financing options beyond the standard lenders. 

We have rented several places, we didn't get any sparkling appliances.We didn't miss any "bad parts"; its just some people have very high standards of what they consider clean like wash an already washed plate or spoon before using and some others would just rinse their coffee cup before pouring in their evening cup.but then you should bring it up before you sign the lease.

For example, where a duplex or quad can secured with standard residential financing, a medium sized apartment block will require things like environmental assessments, etc... 

However, most states have a State standard contract that all realtors in that state use, so the seller's agent will probably expect you to use that. 

The rest of the terms look pretty standard though.If I were you, I'd call around and talk to a few other lenders.  

If their credit didn't meet your standard, why did you rent to them, because of the extra money?

@Jon Schwartz1) To begin with 3 million FMV in California captures innumerable small business owners standing entirely on its own, but if that weren't bad enough, the valuation standard is actually aggregated across all properties owned so it's not in fact in excess of 3 million per property making it much worse still.2) Commercial properties have a very suspiciously expansive scope in the initiative (the devil is in the details, as is typical, and here as well) thus capturing both mom and pop businesses and in many cases even agriculture.3) Unsurprisingly those proffering the provision have acknowledged it is but a first step, once they get their foot in the door with passage of the initiative they will shoot for full repeal of Prop 13 targeting all real estate owners.4) But you make a really great point, sell it as tax on fat cats (while in reality it's scope will hit many many small businesses) makes it palatable to a largely uninformed electorate and further softens them up for delivery of the really big hammer when they shoot for full repeal of Prop 13.

Are there any Texas specific laws we should be aware of besides tht standard non-descrimination laws?

The state owns this, More likely On cases like this ,it means The county or state used it for witness protection or maybe someone that works for like a Jail facility . for protection.. 

If they're not looking to sell the note on the secondary market, but rather hold it internally, they will have a lot more autonomy than a standard mortgage broker or a big bank.