You could engage an architect and engineer to design the plans or go with a modular builder of multifamily to do a design build product for you. 

I am in the East Bay of the San Francisco Bay Area with rentals here as well as Ohio and Bill's team has certainly helped me in the past with Tax Strategies and I will engage him again this year as well.

Whatever they are simply state then do them.Don't engage in any back and forth banter.

Here are some of the questions that I ask contractors before I engage them on my own personal flips or rentals:How long have you been a contractor?

A good attorney (which I’d suggest you engage if you’re buying 45 units anyway) will be able to guide you through it pretty quickly.

Most properties I have been looking at…I normally just watch and see what they go for as I am not too comfortable with fully engaging in the real estate market because I don’t fully know what I am doing.  

My BEST advise is to engage an attorney knowledgeable with Texas real property law; court cases may have set precedents not specifically quoted in statute.2.

Best of luck to you and congrats on the engagement happy wife happy life!

@George Taylor  been asked that a lot.. the timber in your areas is completely different than west coast doug fir  cedar  and Pine.a lot of what I see up your way is more hardwoods.. and yes there is stumpage value for all wood even fire wood.you should talk to some Mills  ( lumber mills) they usually have a log buyer.and or look up forestry consultants in your area engage a conversation with themeach state has their own rules regarding harvesting timberfor instance in California quite difficult ERGO the timber industry is a shell of its selfWA easier but still somewhat complex needing a forester to run your plan throughOregon over the coutner free and as easy as it gets...

A downside is lack of liquidity and mobility with being engaged for a specific period of time and lack of control over the investment.