Hi, Please have a look to my portfolio, you can see my render samples, videos can be in the same quality.
(prices are for a 6~10 floor building, including modeling, complete material and moblation)
there are 3 solutions for what you want:
+ I can render it in LUMION, quality is less than VRAY bud still beautiful and highly detailed ~200USD video renders will be ready in 3 days after design is finished
+ I can render it in 3DS Max with VRAY and medium quality detail objects It will give better quality, but less activity (people, wind, ... than previous), ~350 USD + 1 Week
+ High detail VRAY renders in 3DS Max ~500USD, videos need 20-30 days to be completed, photo realistic render without people