In terms of house location, the Moon is best placed in angular or trine houses 1, 4, 5, 7, 9 & 10 as these give it strength. The fourth house is the strongest as it has directional strength as well.
However, the Moon can also be good if it is located in houses of income like 2, 5, 9 & 11. It is excellent if it is located in angular houses as the lord of a house of income; for example, the Moon in the tenth house as lord of the eleventh, as for Virgo ascendant is very good. It is also good if it is exalted or in its own sign in a house of income; for example, the Moon in Cancer in the eleventh for Virgo ascendant, or the Moon exalted in Taurus in the eleventh for Cancer ascendant.
For integrity in business ventures, the Moon should be associated with the lord of the ninth from the ascendant or with sattvic planets like Jupiter and the Sun. Mercury should similarly have sattvic influences. Mars and Saturn should not be too strong or in association with each other. Combinations of Mars and Venus are also to be avoided as they accentuate the emotional nature.