@Leo Gomez
Congrats in getting involved in real estate investing. I am not an investor in NYC, however had a few basic pointers that hopefully will be helpful. I am not a lawyer and this is not legal advice.
1. Don't underestimate the necessity of doing business under an LLC. You may consider looking into starting one in your state (or whatever state you plan to conduct business in). You can have a trusted and experienced real estate lawyer set one up for you or some have them started through companies like Legal Zoom or you can go directly through your state. If you choose to use a company like Legal Zoom or go through the state, you may also consider having the real estate lawyer review it to ensure that it is structured properly so that you are protected in case of a suit.
2. For your contracts, you may already these in order, but if not BP offers forms and contracts under the Tools tab. With whatever contract you use, consider having a lawyer from the state you plan to do business in review it to ensure that all language is in compliance with your state and worded properly...ultimately protecting you.
3. The BP podcasts are very helpful and include the experiences of so many investors who share their experiences and challenges. I have found these to be very helpful and have taken away great pointers of things to avoid- legal and just basic business practices. Here's a link to some of BP members' favorite episodes.
Hope this is helpful. Wish you well in your investing.