I understand that this is a significant undertaking and requires a contractor with specific expertise and experience in handling such extensive renovations.

Good point as to companies that specialize in ADU's will have expertise and points to bring out, such as the one you mention.

However, I'd go a step further, after learning from Tim Ferriss (The 4 Hour Work Week) and many, many others, to grow your team, leverage their time and expertise and outsource what is not your core strength and passion.We all only have 24 hours a day and need to make decisions on how to grow and not put more stuff on our plate.All the marketing strategies, tactics, and skills that one needs to learn and apply on a regular basis is a huge time investment, so the real question is: Do you want to squeeze another few hours per week into your already overloaded schedule and do all the tedious work you don’t know how to do or like doing, instead of growing your team and leveraging their time to do it much better and faster for you so you can focus on what really matters:GROWING YOUR BUSINESS, NOT RUNNING ITHit me up on a PM if you have any more questions.

A good property manager will have market expertise, a network of real estate professionals, and take care of building management so you have fewer headaches to deal with.

However, hiring a professional with expertise in tax law, the specific industry and construction methodology can help overcome this.Agreement Among Partners/Investors: If a property is owned by multiple investors, there can be differing opinions about whether to obtain a cost segregation study which can complicate and delay the decision making process.

Hello I’m Broke, I need your expertise:- Own a 2 family in NYC with about $800K in equity at 3.5% interest rate $2600 monthly mortgage- Owe about $85k in credit card debt st about 27% apr….all paid minimum but drowning $2500 monthly- Owe $100k partial claim lien at 0 interest- HELOC $30 k available at 5% owe 45kShould i consolidate and pay debt or refinance the $375k + 100k + 45k + 85K at a new interest of 7% or just tackle the 85k separately by consolidating with new interest rates of about 17% and use the HELOC of $30k to pay the high interest credit cards?

Run the numbers for all the options they have and you can guide them with your expertise but it should still be their final decision. 

I see the pros and cons of both sides, while hiring a GC will help ease the entire process as well as have the construction expertise but I also see the GC fees eating in my profits as an investor.I have read articles and books that say it can cost more by acting as own GC by making mistakes but also talked to RE investors in my market saying that acting as my own GC is the only way to make money. 

That being said, private lending or hard money lending can be a gratifying and extremely profitable business if done right.

Your expertise and advice would hold immense value for us.Thank you in advance for any help you can provide.