"Never invest in a business you can't understand." Warren Buffet. Assuming that's a performing $35K note you have 80% chance it will pay off early. Your ROI will drop and the mail box money will stop. Did they mention that?
ROI on notes require 1 of 2 things.
1. The borrower pays each and every month per the contract
2. After you foreclose someone wants to pay more for the house than you paid for the note.
No monthly payment or a home worthy of a dozer wrecks ROI. There are not many of other ways to get ROI in notes. Oh yea, deduct your expenses such as loan serving fees, BPO/CMA, special servicers fees, O&E reports, attorney fees, code enforcement liens, forced placed insurance, unpaid taxes, repairs, then you get ROI.
Consider these steps to being a note investor
1. Go to weclosenotes.com and sign up for Scott Carson virtual note buying for dummies. You will also learn what not to waste time on such RMLO certifications.
2. Write a business plan if for nothing else to ensure you want to move to step 3.
3. To make a living with this you need learn how to run a legit business. Check out your local SCORE chapter or Small Business Admin office for free training/mentorship on this topic. You will never get a business loan to buy bad debt.
4. Get your plan and priorities set so you stay focused on your mission.
5. Follow every note investor and note educator you can find on meet-up, facebook, linked, active rain, etc. and listen to them.
6. Devote every spare moment to digesting webinars past and present on youtube and vimeo.
7. To master this craft you need training, mentorship and 10,000 hours.
8. To get volume you need training, mentorship and 10,000 hours on marketing.
Watching hundreds of hours of free video from note educators such as Speed, Carson, Malecki, the note queen, Note MBA, will speed up the learning curve.
You absolutely will need a source of income during this time.