Steven,
Go to this link and click on Men’s affiliates. There are 35 communities listed. Some restrict to under 30, many to under 45/46 and a number of them note that they consider older vocations (eg older than 45) on an individual basis. I think the Servants of Charity has no age limits as it is all individual. Because you want to become a brother you will have a better chance at 60 (or however old you are) than were you trying to become a Priest.
religiouslife.com/vocsearch/search.phtml
Best thing is to contact them and discuss your particular situation, skills and so on. For example, a health sixty year old physician, electrican and so on may be looked at differently than an 80 year old who has had two strokes and is bed bound and wants to become a brother.
But even if it does not work out DO NOT give up. You can always consecrate yourself within a Third Order or Religious Insitute, take vows and lead a life dedicated to prayer and so on within your own home. There are many. The Brothers and Sister of Charity have a domestic expression in which you meet in cell groups and there is no age limit. Whereas their monastic expression is up to age 45.
littleportion.org/Vocations/index.asp?id=17
God has something for you!
Please keep us posted.
North