That means you have to purchase 4166 records to use your $125, but Datazapp is even better than every other company because of you pay them $250 in advance they will let you make as many small purchases as you want during a 30-day period until you reach 6,000 records.The cost to purchases emails and phone numbers is much more expensive when you are using a customer list you own because of what I already explained, but if you don't have a list and you want information for property owners then you can limit your lists to only those that contain both email addresses and phone numbers.I think the reason most real estate investors don't do a lot of direct mail or bulk email is because it requires a lot of software and technical knowledge.

Giving them written notice is best practice.I would consider employing an attorney with a lot of real estate experience.

Been doing some more research and tryouts for image generation in real estate.

I buy and sell real estate.

Thanks to the Cost Segregation Study, the property investors accelerated the depreciation that the first year depreciation was approximately $394,000.The use of the accelerated depreciation strategy helps real estate investors to reduce the tax liability immediately which therefore increases their bottom line due to the offsetting of income.

If I don’t trust the person on the other side of the table, a contract won’t make a difference.

I hear of all these great profits that are being made investing in real estate that has a major “business” component, like small assisted living properties; rooming houses; sober living arrangements, etc.  

Is it too late for me to start in real estate investment?

Most of your bullet points are just starting points but the real question is how do you want it finished. 

Start by reading the Ultimate Real Estate Investing Guide: https://www.biggerpockets.com/guides/ultimate-real-estate-investing-guide/introduction2.