You can search for all the Form D filings and do a data dump of that list (note: it will be HUGE) and then you can start just searching through that list of companies.  

If you have the cost segregation done by a reputable company then even if you get audited, you'll have proper support to back up your deductions.Now whether it's worth it - A cost segregation study can be extremely beneficial but its a case by case basis that depends on a multitude of factors.

.- EHB 1337 promotes ADU/DADU construction around WA.

We are a Veteran owned and operated mortgage company.

There is an office that is detached from the house that we could make super cute and promote as a private haven for people and do a few more fun things with the large space of the backyard. 

I would give similar advice to someone that wanted to open a restaurant, landscaping company, hair saloon, etc.  

There is a company out there right now paying 40% annualized and I know an investor who thinks its great, well yeah its great until you lose it all - as never in the history of mankind has a company been able to pay its investors 40% per year on a continuing basis.

My company charges an application fee.

Along with Appfolio, we use Showmojo, Leadsimple, Lowe's and our collections company. 

@Tarik Kafel recommend checking NARM.com for professional and licensed PMCs.Also, here's our copy & paste advice:Encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.