No, only that I am supposed to come to an agreement with the forest owner through private law. I have tried that, but he has shown no insight that the trees extend up to the property boundary. Therefore, I am looking for a solution in the law.
I actually believe that the Neighbor Law applies here. The oral agreement with compliance to the regulation did not work. The next step would be a written reasonable deadline for the removal of the overhanging branches, etc., possibly a clearing... well, as stipulated by the above-mentioned paragraph. If that does not work, then an arbitration court must pronounce the law.
I found something online here, source Haus-und-Grund, interesting is the passage about the statute of limitations – that does not look good for you:
... "... will be granted if a so-called conciliation procedure has previously been conducted before a recognized conciliation authority (lawyer, notary). Attention: The statute of limitations for such claims is 5 years. This also applies if the property was only acquired later and the buyer was therefore unable to timely object to the violation of the distance regulations.
After the statute of limitations has expired, the cutting back of a tree can only be demanded in exceptional cases under the aspect of the neighborly community relationship (§ 242 Building Code). According to the Federal Court of Justice, this may be the case if unusually severe and no longer tolerable impairments arise from the tree, e.g., through massive shading of the neighbor's house, and the cutting back is reasonable for the tree owner, e.g., if the affected house must have electric light turned on during the day due to shading, or if TV reception is disturbed due to radio wave shielding caused by the height growth of the neighboring trees (BGH, judgment of 06.02.2004, V ZR 249/03, DWW 2004, 126)."
Regards