@Ben BreunerAs others have mentioned - there are unique tax filing requirements for those who live abroad.If you have more than $10,000 in a bank account held in Germany or any other foreign country - this will require a filing requirement.You may get an automatic extension till June 15 to file your tax return.You may get tax credits for any taxes you pay to Germany.There may be a partnership tax return requirement depending on how the rental properties are held.

I am looking for recommendations for a tax preparer who knows the rules of a partnership LLC well and can prepare both personal and LLC taxes.

I would stick to hard money lenders, family, or possibly a partnership to supplement the missing amount. 

"Partner" recently left our partnership the beginning of this month.

@Khaled El Dorry I found my mentors through business partnerships.

You can do it on a per deal basis this way (instead of doing an entire partnership if they're simply going to be hands off).

Making partnerships/ teams.

First, do you have a partnership agreement with your brothers?

I think a multi-member LLC (taxed as a partnership) is the most flexible option.

You’ll both sign a partnership agreement splitting the profits. $35k isn’t a lot in CA, but it’s more than enough in other markets.