It seems to me that a phone call to the intermediary getting them to talk to the tax prep person would be a logical first step vs posting the question to the forum and trying to inject yourself between two experts.Just my 2 cents.

Please advise what type of agreement typically is signed when a passive investor is injecting capital for a real estate project: Real Estate Capital Agreement, Real Estate Investment Contract, etc.

Now I need some advice I am able to inject 15 k$ now from my own money to keep things running and I may be able to get around 120 k$ in may for a new investment.

You will learn to look at things 2 or 3 different ways here as sometimes we say things we dont mean but there is no way to inject a sarcastic tone into the printed word.It is a good practice to always look for another meaning in a post (other than the obvious).

The communication and what is available often gets muddied the further you go down the chain from the direct source.If they ask you for any upfront fees RUN as fast as you can away from them.There are numerous posts on this subject.It sounds like your whole premise of making the deal work is the financing.I have not seen funding at the levels even close to where you were quoted for a non-performing asset like that.Too many other performing loans that are less risk for a lender to lend on at those low interest rates.Typically unless paying all cash for the deal the value add buyer does not want to use private or hard money because of the very high carry costs (interest rate),points,short term of loan to refi costs,etc.Instead the value add buyer will try to get the current owner (usually a bank) to finance them at good terms and the buyer injects some of there own cash to get the property performing.The debt service is much lower in this situation and funding is easier.I can see a bank that owns the property giving those terms as they have an interest in getting the non-performing asset performing again.To an outside lender it's just a new loan and they do not have the motivation to get creative with it.

Every lender, private or banks, will want you to have a cash injection.  

I'm Ed from eastern oklahoma.Currently I own no property other than my personal residence,of which I currently owe around 13k(worth ~150k)I will be entirely debt free around the beginning of next year and i'm interested in real estate and RE investment.I'm 29,married,with 2 children(1 severely disabled).I currently work several jobs,Ford dealer tech by day,part time autozoner at night and I have a small side business programming GM fuel injection between those two.Honestly,i've always been interested in auto's etc.. but this will be the second time in my adult life i've decided I don't want it to be a career.I'm considering quitting my day job for Ford and getting my RE license on the side.This is for several reasons.I've always been interested in real estate,I love any kind of new education,frankly i'm tired of my day job and would like to try something different(even if it's drastic).Depending on how all the financials work out with AIG,income shouldn't be a problem should I quit one job to concentrate on RE education.

It'd be a great source of passive income (more or less) for you, in exchange for a couple hours of your time answering questions and injecting some input throughout the process.

You don't fund it until needed, by cash injection or from loans, usually private money, partnerships or bank funds per deal.

This would also mean that you will have to inject the equity.