That will increase your material costs for the job and is the contractor paying for the material in their bid or are you paying for it and paying them a labor cost.

Excess depreciation could be suspended as a passive loss unless you qualify as a Real Estate Professional (REPS) or materially participate in a Short-Term Rental (STR)—which would allow you to use the additional depreciation to offset W-2 or business income.

If it is a high end housing product you may have to use a designer because they have access to some material/finish suppliers that are otherwise unavailable but that tends to only be for the highest end housing deliveries.

As for the rest of it, you can find a lot of useful tips on past forum posts along with podcasts and youtube material on the topic (BP and other RE sources).We've self managed STRs for a few years.

Partner with a real estate marketing company out of Las Vegas or Provo, Utah to market, promote and advertise the “mentorship” system consisting of the free seminar, followed by the modest fee weekend workshop, followed by the $15,000 - $40 000 full mentorship program.Here are the usual results1- 99% of “students” never earn back the cost, despite 1000s of wasted hours2- students learn nothing of real estate principles, real estate finance and real estate law which are the necessary foundation blocks of knowledge necessary for a SUSTAINABLE career in real estate investment 3- with hundreds or thousands of “students” unleashed on the real estate selling public they’re AT BEST an annoyance of trying to do “unrealistic” deals, AT WORST lead to a disastrous result for vulnerable homeowners.4 - The career real estate investors, service providers, brokers, lenders, etc are so disgusted with all of it and the outcomes they see that that can’t even comprehend that the subject technique or strategy does have a legitimate use when utilized (1) by and experienced and well capitalized buyer and (2) full disclosure is provided all parties with legal representation.  

Usually I say if I have to learn something new and it will take me a long time to understand the material I say outsource because you can spend your time working on your business.

Sounds like you need to have a relationship with a couple of good contractors, 40k for vinyl siding sounds high, what was the material cost.  

Quote from @Samuel Kim: Hello i am a doctor who wants to use cost segregation/bonus depreciation on my 9 rental houses, my home maker wife wants to meet the 750hr test to obtain real estate professional status and material participation.

A Qualified Joint Venture (§761(f)(2) )allows two spouses operating a business together to not file a partnership return; however the business can't be held as a state entity (§301.7701-2) like an LLC and it also requires material participation by each spouse under §469(h) which can be hard with a SFH. 

@Hector Escobar Watch out for the forum moderators...they'll probably say this is self promotion and/or advertisement and it should be posted on in the Classifieds section.