A couple of suggestions wold be:
Hook up with a mortgage person here in the area that can work with you in achieving your goals of being in a solid position to perform.
Make sure the property you are leasing with an option's payments and purchase price are within the guidelines you can perform within when your credit will allow. Doing a LO above your Means to qualify is a waste of your Option Consideration on the property.
Read up on the pros and cons of doing a LO.
When working with anyone to do a LO, make sure that an Attorney familiar with Real Estate and Lease Options is used do the deal.
If interested in a power team, please let me know. I've been working with real estate for 25 years as a private investor and can refer you to a Realtor that help; Attorney; and myself and others that are looking for Tenant Buyers.
Good luck with your move!!
I would be happy to help you. You can contact me at 919-247-4667. My oldest daughter is actually living in Munich right now. Just flew back there yesterday after coming home for her younger sister's college graduation. And my wife and I are going to Germany to visit her and her boyfriend this fall.