They add that amount to the next rent payment.

If you only need to raise 91k (let's call it 100k for ease), why not look and see if the lender would be willing to provide a construction loan for this amount? 

For what you did yourself you have the amount of time and supply costs and set an hourly rate for yourself based on the skill set you are using.  

The actual amount may end up being lower than $120.  

I am thinking of structuring the exit as follows if the property doesn't sell.Cash out Refi if property doesn't sell in 90 days after listingValue at $425K (regardless if appraisal comes above that amount)Take on a loan for $332,500 (Partner's $270K + 62,500 split)I would then hold the property and rent it out at $2,400 per month.My cash in would still be $30,000 (plus any equity i keep from refi)I guess my question is: Does this sound like a good deal and is it a fair exit for the partner. 

It sounds like all of your items are small repairs that will each individually be under the $2,500 deminimus amount. 

And, while I am happy to help out, no amount of my advice is going to do you any good if you don't get your crap figured out first.By crap I mean your finances, your goals, your team and your strategy for real estate investing.

Depending on the type of investment property you are looking for and the amount I have a guy.

What is reasonable amount to charge for a 3 family home....fire alarm system set-up and monitoring?  

I handled the outstanding bills after making sure the bills amount and get the sellers to also put in some money to cover around 40%.