Proper API Opiniones 

Buying an investment property can be stressful, especially when you start digging into legal documents, financing, and negotiations. Proper API made the whole process much easier.

I worked closely with Grigori, who was always available to answer my questions, discuss different scenarios, and help find practical solutions whenever something came up. I never felt left alone during the process.

What I appreciated most was that the support went beyond just the technical and financial aspects. As someone who tends to overthink important decisions, having a knowledgeable team that was patient, responsive, and reassuring made a huge difference.

Professional, effective, and genuinely supportive throughout the entire purchase process. A true 5-star experience.

I had an excellent experience working with Proper API. Pierre and Justin were my advisors throughout the process. They took the time to listen carefully, understand my needs, and assess my long-term financial goals.

Thanks to their guidance, I didn’t just set up a retirement investment plan—I also purchased my first buy-to-let investment property through the opportunity they recommended.

Their professionalism, expertise, and personalized approach made the entire process smooth and reassuring. I highly recommend Proper API and would especially like to thank Pierre and Justin for their outstanding support.

As an expat in Germany, I had always been interested in investing, but I lacked the local knowledge needed to make tax-efficient long-term decisions.
From the first consultation, the team provided valuable, personalized insights into how investments are taxed in Germany and how to approach long-term wealth building. Their advice was tailored to my situation and it gave me the confidence to set up a private retirement plan.
I also learned that investing in real estate was more accessible than I had assumed and can offer potential tax advantages, which was particularly helpful given my limited familiarity with the German tax system.
After deciding to invest in real estate, Proper API supported me throughout the entire process, from identifying and evaluating properties to securing a loan and coordinating notary appointments.
I would highly recommend their services.

Very helpful and transparent about everything.

It has been great experience for us with the service of Proper API. Denis has been our main contact for our financial guidance and he has been very supportive and gave us customised information as per our needs.

Ich kann Proper API uneingeschränkt weiterempfehlen. Von Anfang an hatte ich das Gefühl, bei kompetenten Leuten gelandet zu sein, angefangen beim Gründer Dariusch bis hin zu jedem im Team, der an meinem Fall beteiligt war. Alles lief organisiert und durchdacht.

Es ging nie darum, mich in eine bestimmte Richtung zu drängen oder mir etwas zu verkaufen und ich hatte nie das Gefühl, dass eigene Interessen im Vordergrund standen.

Das Angebot deckt alles ab, was man braucht: Marktbeobachtung, die Suche und Prüfung passender Objekte, Überlegungen zur optimalen Struktur, Finanzierungsfragen und den ganzen bürokratischen Kram. Man hat also einen zentralen Partner für alles.

The Proper API team was extremely competent, especially my financial advisor, Pierre, who guided me transparently and honestly in achieving my real estate investment goals. I highly recommend their services, as they are a team of truly skilled professionals.

Working with Proper API was a genuinely delightful experience. The team is highly efficient and well-organized starting from Dariusch (the founder) to everyone on the team handling your case.

My advisor, Grigori Rosenfeldt, was very knowledgeable and thorough. He has a solid grasp of the German market (pricing, demand trends, regulations, legal topics, taxes, and more). He was like an encyclopedia. There is no question that was left unanswered. He always came prepared and went into the detail rather than giving surface-level answers.

I never felt like I was being steered toward a decision; the advice always felt honest and well-reasoned. I was in good hands.

They take time to understand what you're actually trying to achieve before making recommendations, which makes the guidance much more relevant than a generic assessment.

The service covers a lot of ground such as market analysis, property search and evaluation, structuring considerations, financing, admin and paper work. It's a full package, so you're not constantly having to piece things together from different sources.

That alone saves a significant amount of time. For the level of advice and attention received, their service is a steal. Highly recommended and I wish them continued success!

Aside from setting up my finances properly while living in Germany as an expat, ProperAPI helped me through a very hard process of acquiring real estate. When I say "hard process", I mean hard process if I went through alone as an expat, but ProperAPI made it seem easy. Yes, there were bumps here and there and some delays, but that is the reality of real estate investing and German bureaucracy. The capable professionals of ProperAPI made sure, in all their power, that the delays and bumps were minimized

Denis and his Team was very helpful. Happy to find them 👍🏼

We received clear explanations and a lot of support for the questions we had. They helped us implement processes we had been looking to do for a long time, and they accomplished it in just a couple of months. We were able to cancel some contracts and withdraw funds from existing accounts.

Proper API has been really helpful in choosing right financial strategies for me and my wife. Special thanks to Lukas for taking the time to explain everything in detail and addressing all our concerns. I highly recommend their services.

I have been using Proper API services for the past few months with my consultant, Andre, and so far I am very satisfied with the experience.
I really enjoyed my consultations: they were always clear, transparent, and without any pressure.

Originally, I wanted to better understand how to invest in real estate and how to use it for tax advantages. Andre did great explaining all the details and helping me build a clear strategy for this. He also advised me on a private pension plan and compared it with the more traditional investments I was using at that time

I am happy with the service and knowledge I've received and would recommend them to others

I have been working with the Proper API team for few months now and have been very satisfied with all the support and suggestions given by them.

It has been a great experience receiving consultation from Lukas and Pierre.

Lukas has helped us with a wide range of topics, including financing, pension plans, and legal and private insurance options and inquiries. He has been very thorough and has provided us with detailed information throughout the process.

We have been working with Pierre on property investment. He has been very patient and thorough every step of the way, from explaining the basics to helping us find good apartment offers and choose the right one, and then guiding us through all the steps afterward, from securing a loan to the notary appointment.

We are very grateful for all their help and very happy with their assistance.

We contacted ProperAPI when we felt a bit lost in our financial journey in Germany. The support we received was excellent. We received in depth analysis and consultation from different points of views and our specific requirements, goals were always given the highest priority!
Highly recommended to get excellent inputs and help!

Overall, my experience working with the consultant was positive, especially in terms of responsiveness and support throughout the purchasing process. Communication was generally clear, and they were available to assist when needed.

However, there were some challenges regarding the initially projected rental income. The expectations presented at the beginning did not fully align with the actual achievable rent, which required additional clarification and negotiation later in the process. While this created some uncertainty, I appreciate that in the end a solution was found, and a subsidy from the seller was arranged to bridge the gap.

That said, reaching this outcome required considerable back-and-forth and was at times a tiresome process. A more realistic initial assessment and clearer communication around rental expectations would have made the experience smoother.

In summary, the consultant was helpful and committed, but there is room for improvement in setting accurate expectations upfront.

Happy with the experience. Spoke with André who has been very communicative and educated me a lot on what to expect with the process. I’m already feeling much more financially stable and capable.

I’ve been working with Proper API across insurance, investments, and real estate, and on the whole I’ve had a positive experience.

The insurance and investment consultations were professional, attentive, and well-suited to my needs. The real estate process was, as expected, the most demanding — stretching over about a year and a half — but the team supported me through the learning curve, and the purchase itself was well-coordinated.

One area where I feel there is room to grow is the post-notary phase. In practice, the formal signing is not the final step — there are still several important actions that need to be taken before the purchase is truly complete. As a first-time buyer, I wasn’t aware of this, and despite asking about next steps on a few occasions, I didn’t receive a clear picture in time. With a simple checklist or a brief overview of what comes after signing, I would have been able to take ownership of those steps myself and avoid some of the complications that arose. It’s a small addition that could make a meaningful difference for clients going through this process for the first time.

When support was needed most, it did come through — and I genuinely appreciate that.

One tip for future clients: always read through every document yourself, from start to finish. It pays off.

The consultant was very competent and didn’t push for anything, he was just showing the way and letting you take all decisions .
I felt very well supported all the way .