This vary heavily town to town. 20% down is great if buying strictly as investment but if you have a way of owner occupying I would explore that route and apply the 20% down to increasing value of property and instead using low money down loan. 

I have it narrowed down to two agents, one has more general experience in the area and are part of a large organization.  

Overcoming Common Financing HurdlesMortgage brokers excel at tackling challenges that often derail new investors:Low Down Payments: Brokers can find lenders offering low or no-down-payment loans, ideal for new investors with limited capital.Complex Income Streams: If you’re self-employed or have variable income, brokers can identify lenders that accept alternative documentation.Competitive Rates: Brokers have the leverage to negotiate better rates and fees, saving you thousands over the life of your loan.Pro Tip: Communicate your investment goals clearly with your broker so they can tailor their search to your needs, whether it’s a short-term fix-and-flip loan or a long-term rental property mortgage.3.

@Andrew Wade first narrow down if you want to be an active or passive investor.

I'm in Texas also.. right down the road in CS / Bryan, Tx. 

The deduction is optimized as values increase and can potentially offset the entire net investment (including down payment) for high wage earners.

If we bite off people’s heads when they admit disaster, it suppresses legitimate issues with these techniques. 

Our rates are 7-12%, with no down payment required.

With down payments as low as 5-10%, plus low property taxes compared to the U.S., investing in German real estate is more accessible than you might think.If you’ve ever thought about owning property overseas but felt intimidated, stay tuned.

And it's very pertinent to today's environment because it doesn't look like interest rates will be coming down much, if at all this year.