What my question is what if I be in the lowest rank Of Jannah will we have a feeling that we are in the lowest rank will we do hasad that that guy is in the upper rank than me. If we are in the lowest rank we will be there for all eternal life. I know Allah will grant our every wish but what if I wanted to have a house next to Prophet (S.A.W) will that be possible. Will there be a concept of rich and poor in jannah. Will the Uper rank jannaties will show pity to the lower ones.
Allah (ﷻ) out of His Mercy grants people Paradise and gives them the level of Paradise best suited for them based on their deeds. Though everyone [including the Muslim of lowest status] would wish to have the highest level in Jannah and be next door to the Prophet (ﷺ), this is not going to be based on our wishes alone.. so do lots of good deeds and make lots of Du'a.
There will be various levels of Paradise and those in the lower levels will see the people in the higher levels. But they will not harbor any negative feelings (e.g., hasad [jealousy]) towards those people in the higher levels because Allah (ﷻ) said He will have removed such feelings in Jannah:
ونزعنا ما في صدورهم من غلّ تجري من تحتهم الأنهار ("We will have removed whatever is within their breasts of resentment, [while] flowing beneath them are rivers") - Qur'an 7:43.
IF anything, they will just wish that they had done more Dhikr/Worship in the Dunya so that they too could've been higher. But it won't be a source of distress for them. Rest assured that each person in Paradise will be eternally happy. And it seems, from the texts, that people will be allowed to visit those whom they love in Paradise... including the Prophet (ﷺ). Muslims will see him there inshaAllah.